Release Notes For Mathcad 2001i
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These notes provide the most up-to-date information regarding Mathcad 2001i.
Table
of Contents
10. Where to Get More Information
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· Pentium or compatible CPU, 233 MHz or higher.
· CD-ROM drive.
· Mouse or compatible pointing device.
· Windows 98/ME or higher, or Windows NT 4.0/2000/XP or higher.
· At least 64 megabytes of memory. Additional memory is recommended for improved performance.
· SVGA or higher graphics card and monitor required. 256 color display required. Higher than 256 color display recommended.
· At least 120 MB of disk space. 618 MB is required for full installation of all products.
· For improved performance and full functionality of online Help, installation of Internet Explorer 4.0, service pack 2, or higher is required. Internet Explorer does not need to be your default browser.
· The Excel, MATLAB, S-PLUS, Axum, and SmartSketch components in Mathcad require specific versions of the associated product. See the Requirements for Application Components section for more information.
2. Contents of the
Mathcad Installation CD
The Mathcad CD contains the following:
· The installation program for Mathcad 2001i, which includes associated Help, sample, and Resource Center files.
· The installation program for IBM’s techexplorerä Hypermedia Browser, Professional Edition. techexplorerä is a plug-in for your web browser that allows you to view Mathcad files that are saved in HTML with embedded MathML format. MathML is a markup language that displays mathematical expressions in web pages.
· The installation program for the Solving and Optimization Extension Pack (SOEP).
· The installation program for VisSim Plus 4.5h, simulation software from Visual Solutions.
· The installation program for Autodesk Volo View Express. Volo View assists you in inserting AutoCAD files into a Mathcad worksheet even if you do not have AutoCAD installed.
· The installation program for Internet Explorer 6.
· The installation program for online documentation, which consists of Adobe Acrobat Reader 5.0 and a version of the Mathcad User’s Guide with Reference Manual in PDF format (requires Adobe Acrobat 3.0 or higher). If you do not want to install the online documentation, you can view it from the MATHCAD\ONLINEDOC folder on your Mathcad CD.
Before Upgrading
If you are upgrading from an earlier version of Mathcad, make sure you still have the earlier version of Mathcad installed on your system. Alternatively, make sure you have the serial number or the installation media for the earlier version. The upgrade installation first attempts to locate the earlier version on your system before it installs Mathcad 2001i. If the installation does not find the earlier version of Mathcad installed, it prompts you to enter the serial number or insert the installation media.
General Installation Instructions
Note to Beta Testers
To ensure proper functioning of Mathcad, you must uninstall the beta version. If you attempt to install Mathcad, you will be prompted to uninstall the beta version before installing Mathcad 2001i. Use the Add/Remove Programs control panel to remove the beta version of Mathcad.
To install Mathcad 2001i after uninstalling the beta version, follow the general installation instructions given above.
Complete vs. Custom Installation
The custom installation gives you the option of installing the following:
· Mathcad 2001i: all the files necessary to run Mathcad and its online Help system.
· Resource Center Files: reference files consisting of tutorials, reference tables, and discipline-specific Mathcad files. If you choose not to install the Resource Center files, you must have the CD available when you choose Resource Center from the Help menu in order to access the Resource Center contents.
· Mathcad Component Files: files that allow you to insert components, such as Excel, MATLAB, and SmartSketch, into your Mathcad worksheets.
· Mathcad Sample Files: worksheets that demonstrate the use of components in Mathcad and other files that demonstrate the use of Add-ins, such as Excel and AutoCAD, and VisSim.
The complete installation installs all Mathcad program files, Resource Center files, Mathcad components, and sample files.
4. Mathcad.com
The Mathcad web site at www.mathcad.com offers several features for all Mathcad users.
Go to the Download area to get:
· New releases of Mathcad that add capabilities to your existing version.
· New Add-ins that allow you to access Mathcad’s functionality from within other programs like Excel, AutoCAD, and Visio.
· Sample files that demonstrate new and existing features.
· Mathcad Electronic Books like Programming in Mathcad and Solving and Optimization in Mathcad.
Go to the Support area to access the Mathcad Knowledge Base, a database containing tips, techniques, troubleshooting information, and more.
The Mathcad Web Library contains Mathcad Electronic Books, user-contributed files, 2D and 3D graphs and animations made in Mathcad.
5. IBM’s techexplorerä
Hypermedia Browser
IBM’s techexplorerä Hypermedia Browser is a plug-in application for your web browser that allows you to view web pages that contain Mathematical Markup Language (MathML). When you save a Mathcad file in HTML/MathML format, you get an HTML file with embedded MathML. MathML is a universal format adopted by the World Wide Web Consortium for math authoring on the web. Your Mathcad CD contains techexplorerä 3.1 and an introductory version of the software is also available from the Download area of the Mathcad web site (http://www.mathcad.com/download/download.asp).
Be sure to check out the Developer’s Reference and the Author’s Reference, accessible from the Help menu in Mathcad.
The Developer’s Reference is for advanced Mathcad users. It provides information on customizing components using scripting, using the Scriptable Object component, building components in C++, and using Mathcad as an Automation server. Customizable components include the Data Acquisition Control (DAC) component and the MathSoft Control components.
The Author’s Reference contains instructions and tips for creating Mathcad Electronic Books, as well as publishing your Mathcad worksheets on the Web.
7. Requirements for
Application Components
Mathcad uses components to communicate and exchange data with the applications Axum, Excel, MATLAB, and S-PLUS as well as external data sources. Components are specialized OLE objects that not only link to external data sources and applications but also allow you to compute with these sources or applications within your Mathcad worksheet.
Using the Axum, Excel, MATLAB, S-PLUS, and SmartSketch components
To use the Axum, Excel, MATLAB, S-PLUS, or SmartSketch component in Mathcad:
· You must have a supported version of the corresponding application on your system:
|
Component |
Requires… |
|
Axum |
Axum 5.0c (dated 5/18/97) or higher |
|
Excel |
Excel 97 or higher |
|
MATLAB |
MATLAB Professional 4.2c or higher or MATLAB Student v. 5 or higher |
|
S-PLUS |
S-PLUS 4.5 or higher |
|
SmartSketch |
SmartSketch LE, SmartSketch 3 or higher |
· You must have sufficient memory on your system to run both Mathcad and the other application(s). In practice, we recommend a minimum of 96 MB of RAM.
· Worksheets that include components can be shared with other Mathcad users; however, the components will not compute unless the person receiving the worksheet has all the necessary applications installed on his or her system.
More on the MATLAB component
· Some versions of MATLAB support complex data structures such as multidimensional arrays. While you may use such data structures within the MATLAB environment, you may not pass them to or from Mathcad.
· Executing a MATLAB component within Mathcad resets the MATLAB environment. Be sure to save any work in MATLAB before you execute a MATLAB component in a Mathcad worksheet.
Using the ODBC Read component
In order to use the ODBC Read component, you must establish a connection to a database or databases on your computer. Here are instructions for connecting to the database located in the QSHEET directory of your Mathcad installation or on your CD:
These instructions are also listed at the top of the ODBC Read sample file in the Resource Center (under Components).
8. Menu Changes from
Mathcad 6
If you are upgrading from Mathcad 6, you'll notice that the menu commands have been reorganized to make them more intuitive. The View, Insert, and Format menus are new, and the Text and Graphics menus have been removed. Some other specific changes include:
·
File/Export Worksheet has been removed; you may
now save a Mathcad worksheet in RTF format using the File/Save As command.
·
File/Open URL has been removed. To open a file
via its URL, choose Resource Center from the Help menu and click
the second button from the left (the globe) on the toolbar, and enter the URL.
· File/Insert has been removed. Copy and paste the regions of a worksheet to insert them.
·
The File/Get From Notes and File/Save to
Notes commands have been removed. This functionality is no longer available.
·
File/Save Configuration and File/Execute
Configuration have been removed. You can now save preferred worksheet
settings by creating a template.
·
Edit/Redo has been added to let you reapply an
edit undone by Edit/Undo.
·
Edit/Delete replaces Edit/Clear.
·
Edit/Regions/View Regions is now a command on
the View menu.
·
Edit/Regions/Select All is directly on the Edit
menu.
·
Edit/Regions/Lock Regions is now Area/Lock
on the Format menu.
·
Edit/Regions/Separate, Edit/Regions/Align Regions, and
Edit/Headers/Footers have been moved to the Format menu.
·
Edit/Insert Pagebreak and Edit/Link have
been moved to the Insert menu. Links are now called Hyperlinks.
·
Edit/Include is now Insert/Reference.
· Edit/Insert (Delete) Blank Lines has been removed. Insert or delete blank lines by clicking in the worksheet with the right mouse button and choosing Insert Lines or Delete Lines from the pop-up menu.
· The Text menu has been deleted and the available commands have been distributed among other menus. Insert a text region into your worksheet as before using the double-quote key (") or choose Insert/Text Region. The Text/Create Text Paragraph command is no longer available; only text regions can now be created. Text/Embed Math has been moved to Insert/Math Region. Text/Change Font and Text/Change Paragraph Format have been moved to the Format menu. Text/Check Spelling has been moved to the Edit menu.
· The Math/Matrices, Math/Choose Function, and Math/Units/Insert Unit commands have been moved to the Insert menu.
·
The Math/Units/Change System of Units, Math/Units/Dimensional
Format, Math/Randomize, and Math/Built-in Variables commands
have been reorganized under the Math/Options pick.
·
Math/Numerical Format is now Format/Result.
·
Math/Font Tag is now Format/Equation.
·
Math/Highlight Equation has been removed. To
highlight an equation, click on it, choose Properties from the Format
menu and click "Highlight Region."
· Math/Change to Greek Variable is no longer available. Change a character behind the insertion point in math regions to Greek by pressing [Ctrl]G.
· The Graphics menu has been deleted and the available commands have been distributed among other menus. Use the Insert/Graph pick to insert available built-in two- and three-dimensional plot operators, and use the Insert/Picture command to insert a picture region. Format a selected plot or picture by using the Format/Graph or Format/Picture command, or by double-clicking on the plot or picture. For X-Y and Polar Plots, Trace and Zoom are available as commands on Format/Graph as well as buttons on the Graph toolbar.
· The available Symbolics menu commands are identical to those in Mathcad PLUS 6.0 but have been renamed or reordered for clarity. The Differentiate on Variable, Integrate on Variable, Solve for Variable, and Substitute for Variable commands have been grouped under the Symbolics/Variable command. Symbolics/Derivation Format has been renamed Symbolic/Evaluation Style and Symbolics/Derive in Place is now part of the Evaluation Style dialog box.
· Most worksheet management commands formerly on the Window menu have been moved to the View, Insert, and Format menus. Window/Zoom, Window/Refresh, and the toolbar hiding and viewing commands have been moved to the View menu. The Window/Animation commands have been renamed View/Animate and View/Playback. The Window/Change Colors command has been moved to the Format/Color command.
· The Books menu has been removed. You can open an Electronic Book by choosing Open Book from the Help menu. To access the book annotation commands, choose them from the Book menu in the Electronic Book window.
· The Help menu offers picks for Mathcad Help, the Developer’s Reference, the Author’s Reference, the Resource Center, and Using Help. The Desktop Reference and Tutorial Electronic Books have been integrated into the Resource Center, the Sampler Electronic Book has been removed, and Technical Support Help has been removed.
Printing or display problems
If you are using Windows 98 and a PostScript printer driver, you may have display or printing problems. Operators or parentheses may not appear on the screen correctly, they may disappear, or they may not print properly. If you encounter these difficulties you may need to adjust your font settings for the Windows PostScript printer driver. Depending on your printer settings, the print driver may substitute the PostScript Symbol font for the TrueType Symbol font used by Mathcad, resulting in a variety of output problems. To correct the problems:
Difficulty using the Collaboratory
If you are experiencing difficulty using the Collaboratory and are using Internet Explorer 4.0 as your browser, you may be using IE 4.00. The Collaboratory requires IE 4.01 or higher because of issues in IE 4.00. You can install IE 6 from the Mathcad CD or you can update to IE 4.01 by going to the Download area of the Microsoft web site (www.microsoft.com).
Making a User DLL appear in the
Insert Function dialog box
If you create a function DLL using C or C++, you can make the function appear in Mathcad’s Insert Function dialog box by adding an entry for the function to the file USER.XML located in the \DOC\FUNCDOC subfolder of the Mathcad folder. For more information on creating a function DLL and editing the XML file, refer to the Developer’s Reference, which may be accessed from the Help menu in Mathcad.
Changes to wave and iwave functions
In Mathcad 2000, the boundary wavelet coefficients for wave and iwave were rotated with respect to their counterparts in Mathcad 8. This functional change was carried forward to the current version. You may therefore see different but correct results from these functions in Mathcad 2001i as compared to Mathcad 8.
Illegal context error in a function
definition
Definitions such as f(x) := j + x, where j is a range variable, are no longer supported. Definitions that use range variables on the right that do not appear as either subscripts or function arguments on the left are illegal. They issue the error "Illegal context. Press F1 for help." If you created a worksheet in an earlier version of Mathcad that contains such definitions, consider redefining your functions so that the range variable is an argument. For example, f(x) := j + x can become f(x,j) := j + x.
Keystrokes differ from previous
versions
The keystrokes for common tasks can be either the Windows standard keystrokes or the ones used in Mathcad 8 and previous versions. For example, the Windows standard keystrokes are [Ctrl]P for Print (not the Greek letter p) and[Ctrl]Z for Undo (not infinity).
If you prefer to use the keystrokes used in earlier versions of Mathcad, choose Preferences from the View menu and remove the check next to "Use Standard Windows Shortcut Keys."
The following keystrokes change depending on whether you use Windows standards:
|
|
Ctrl P |
None |
|
Undo |
Ctrl Z |
Infinity |
|
Redo |
Ctrl Y |
None |
|
Find |
Ctrl F |
Ctrl F5 |
|
Replace |
Ctrl H |
Shift F5 |
|
P |
Ctrl Shift P |
Ctrl P |
|
Insert Function |
Ctrl E |
Ctrl F |
|
Infinity |
Ctrl Shift Z |
Ctrl Z |
|
Select All |
Ctrl A |
None |
|
Math in text |
Ctrl Shift A in text |
Ctrl A in text |
|
Left limit |
Ctrl Shift A |
Ctrl A |
|
Insert page break |
Ctrl Enter |
None |
|
Right limit |
Ctrl Shift B |
Ctrl B |
|
Chemistry mode |
Ctrl Shift J |
Ctrl Shift O |
|
Move regions up |
Delete key |
Ctrl H |
|
Exit a text region |
Ctrl Shift Enter |
Shift Enter |
|
New line in text paragraph |
Shift Enter |
None |
|
Mode for typing symbols in a name |
Ctrl Shift K |
Ctrl Shift P |
Break statements outside of a loop
behave differently
The behavior of the "break" programming operator in Mathcad 2001i is slightly different from the behavior in Mathcad 2000, but returns to the behavior of the operator in earlier versions. If you use the "break" programming operator in the main branch of a program or within a "for" or "while" loop, "break" returns the result of the last statement executed. In Mathcad 2000, if the "break" operator was used in conjunction with the "if" operator, it returned a 1, since the condition is true when the break is executed.
3D graphs that require more than one
argument
Since Mathcad now supports multiple 3D plots per graph, there must be parentheses around the arguments for a single three-dimensional plot that requires more than one argument. For example, a 3D scatter plot requires three arguments separated by commas. In Mathcad 2001i, these arguments must be enclosed together in a set of parentheses. If you open a worksheet containing a 3D scatter plot created in Mathcad 7 or earlier, you’ll see parentheses around the arguments.
3D graphs disappearing
If 3D graphs disappear or turn black at the bottom as you scroll down in a worksheet and you have a Diamond Fire GL 1000 Pro video driver or similar, visit www.diamondmm.com on the Web and verify that you have the latest version of the driver as well as the latest version of the BIOS.
Scalar results enclosed in
parentheses
A 1x1 array may occasionally be returned as a result. In Mathcad, such an array appears as a number enclosed in parentheses.
Infinite integrals
Mathcad requires any function being integrated over an infinite limit to be real.
Variable names and SI units
The SI unit system is now the default unit system in Mathcad, giving you access to standard SI unit names (including single-letter abbreviations such as A for ampere, N for newton, etc.). Take care when defining variables in Mathcad worksheets not to redefine built-in unit names in the SI system. Choose Unit from the Insert menu to browse a list of units in the default unit system of your worksheet.
Obsolete functions
The functions READ, WRITE, APPEND, and until have been removed from Mathcad. If you have worksheets, written in a previous version of Mathcad, that contain any one of these functions, you will see an error message that reads "Obsolete function." Use the File Read/Write component, the READPRN, WRITEPRN, or APPENDPRN functions, or programming instead.
Accessing the Collaboratory
To access the Collaboratory in Mathcad 2001, choose Resource Center from the Help menu to open the main page of the Resource Center. Then click on the Collaboratory button. You can also go directly to the Collaboratory at collab.mathsoft.com/~Mathcad2000.
Multiple uses for quote key
The quote (") has many uses in Mathcad. In a blank space in the Mathcad worksheet it begins a text region. If you have selected a math expression, it introduces the complex conjugate operator. In a math placeholder it begins a string variable.
Importing MATLAB MAT files
MATLAB allows you to save a "sparse array" (an array containing rows or columns of zeros) using special sparse array notation. Mathcad does not convert the sparse array notation if you import the array with either the File Read/Write component or the Input component; they read in the array exactly as it is stored in the file.
Using the Excel component with a
worksheet containing a macro
If you insert the Excel component by referencing an Excel file containing a macro, you may encounter an "OLE timeout" dialog box. To continue loading the file, click "Yes" on the dialog box.
Exporting to dBase files
When you export data from Mathcad to a dBase file, the values are truncated to four decimal places.
Importing data files containing text
If you want to use the File Read/Write component to import data from a data file containing text, first remove the text.
Error "Unable to set the Value
property of the Range class" when using the Excel component
If you use the Excel component in Mathcad and have Excel for Windows 95 installed, you will not be able to pass more than approximately 1800 values to the Excel component.
Unable to print
If your printer has an extremely long name, you could experience a system error when printing from Mathcad. Try shortening the name of the printer icon in the Control Panel to prevent this from happening.
Black boxes appear when printing
If you print a worksheet containing an operator such as a summation, you may see black boxes on the printout if you are printing to a PostScript printer. To correct this, use a non-PostScript printer driver that is compatible with your printer.
Text doesn't appear in Print Preview
Gray and silver text does not appear on the screen when you choose Print Preview from the File menu but it will print.
Using the .Value property of the
Scriptable Object component
In Mathcad 7, it was necessary to use a structure such as Inputs(0).Value(0,0) in
a script in order return a scalar. Now, Inputs(0).Value returns either a scalar, a
vector, or a matrix, depending on the type of data that is in Inputs(0).
Saving Mathcad worksheets using
older formats
When you save a Mathcad worksheet in an older Mathcad format, regions or features that won't work in earlier versions are saved as bitmaps. However, these bitmaps may not closely resemble the regions or features if you save the worksheet using 256 colors.
Opening Mathcad 6 worksheets
You can open any Mathcad 6 for Windows or Macintosh worksheet in Mathcad 2001i. In general, the worksheet will maintain its previous appearance. However, live symbolic keywords are converted into the new symbolic keyword operator in Mathcad, and file associations are translated into full pathnames. File variable arguments appear as strings inside data file functions such as READPRN and WRITEPRN.
File Write component
The Properties option on the pop-up menu for the File Write component is non-functional.
Backtracking while browsing the Web
If you jump to a document from a framed page while browsing the Web using the Resource Center, pressing the Back button brings you to the previously loaded page instead of the framed page.
Inserting a picture
In Mathcad 6, it was possible to choose Picture from the Insert menu and enter the name of a BMP file such as bird.bmp directly into the placeholder. The argument bird.bmp was not entered as a string. This kind of argument is no longer supported in Mathcad. If the argument is a filename, it must be typed as a string. For example, enter "bird.bmp" in the placeholder.
Difficulties creating an animation
or inserting a component
You could experience system difficulties while creating an animation under Windows NT if your TEMP variable points to a folder that does not exist. Make sure the TEMP variable points to an existing, writable folder. To set this variable under NT 4.0, click on My Computer with the right mouse button, choose Properties, and click on the Environment tab.
Difficulties in the online Help
If you run the Mathcad Resource Center from the CD or if you have never installed Internet Explorer 4.0 or higher, the QuickSheet Examples in the Mathcad Help may not launch automatically. To open the QuickSheet examples, open the Resource Center, click on QuickSheets, and use the Search button in the toolbar to search on the topic you were looking at in the Help.
If you have never installed Internet Explorer 4.0 or higher, you may encounter other difficulties in the on-line Help. The Related Topics buttons may not appear until you resize the window. For best performance of the on-line Help, we recommend you install Internet Explorer 4.0 or higher so that you have the latest technology available, but you do not need to use IE or have it appear on your desktop. To install IE 6, run Ie6Setup.EXE in the MATHCAD\IE folder on the Mathcad CD.
Personal QuickSheets
If you created Personal QuickSheets using Mathcad 6 or 7, you can open them in Mathcad 2001i by choosing Open from the File menu, selecting the Mathcad 2001i folder, and typing *.MCU in the File Name. Your Personal QuickSheet is a file with the MCU extension.
Mathcad and Axum
To insert Axum graphs in a worksheet:
· Install Axum 5.0c (dated 5/18/97) or later.
· Refer to Help in Mathcad for information on the Axum component. Note that information about using Axum in Mathcad in the online Help in Axum may be out of date.
· Refer to the online Help in Axum for information on required data formats for particular graphs.
Random internal errors, crashing,
strange behavior
If you are experiencing difficulties with Mathcad, such as getting error messages when you shouldn't or seeing internal errors, the following steps may correct your problem:
· Make sure virus checking is off before installing Mathcad. We have seen problems with both Norton and McAfee anti-virus software, as well as other products.
· Don't run Norton CrashGuard together with Mathcad since it can misinterpret normal program operations as crashes.
· Make sure you have up-to-date versions of video and other device drivers installed. Updated versions are usually available on the web sites of your computer manufacturer or device vendor. Many users have corrected errors by simply updating their drivers.
By taking these steps, you can avoid many common problems in your use of Mathcad. If you encounter any errors after taking these steps, please contact Technical Support with the details so that the problem can be investigated further.
Solve blocks take a long time to
calculate
Mathcad uses a series of algorithms to find the result to a solve block. This process can take longer to find a solution. If you want to speed up the process, right-click on the find or minerr function which closes the solve block and choose Nonlinear/Levenberg-Marquardt from the pop-up menu.
Other difficulties with solve blocks
If you experience other difficulties with solve blocks such as failures to converge to a solution, right-click on the find or minerr function which closes the solve block and choose Nonlinear/Levenberg-Marquardt from the pop-up menu. In particular, if you use the result from one solve block in another and are seeing the error "Can't understand something in this expression," choose Levenberg-Marquardt for each solve block.
Failed to ... error messages
You may see one of the following error messages when starting Mathcad:
Failed to create function manager.
Failed to create garbage collector.
Failed to create allocator.
Failed to create compute engine.
Failed to create symbolics engine.
Failed to initialize compute engine.
Failed to find connection point.
Failed to establish connection.
If you see one of these error messages, do the following:
Vectors have more elements
If you define j := 0 .. 4 and then define x[j := 0, 1, 2, 3 (a vector with j as the subscript), Mathcad now creates a 5-element vector whose elements are 0, 1, 2, 3, 0. In previous versions of Mathcad, a 4-element vector was created containing only the elements 0, 1, 2, 3. If you used a definition like this in the past, you may notice some vectors with more elements in them.
Evaluation of 0*expression and
0/expression
When you evaluate 0*matrix, Mathcad no longer returns the scalar value. It now returns a matrix of 0’s. Similarly, any expression of the form 0*(expression that would return an error) or 0/(expression that would return an error) will now return an error instead of 0.
The symbolic processor recognizes
range variables
The symbolic processor is now able to understand a range variable definition in a worksheet. Therefore, if you define a range variable, say x, and then evaluate an expression in x symbolically, the result will be a range of values or expressions, not a single expression in x. To work around this situation, and thus simulate the behavior of previous versions of Mathcad, define x:=x above your symbolic calculation.
Errors in new definitions persist
Mathcad no longer reverts to old definitions when an error occurs. For example, if you first define x := 3, and then define x := 2 + ln(0), you will now get an error when you evaluate x. In previous versions of Mathcad, this evaluation would return x = 3, but now the error from the second definition persists.
Scripting changes in the Scriptable
Object component
There are two changes:
· Subscripting the Value of Inputs or Outputs (in a construct like Inputs(0).Value) must now match the data structure you access. You do not need a subscript for a scalar value (for example, Inputs(0).Value); you need a single subscript for vector (for example, Inputs(0).Value(0)); you need a double subscript for a matrix (for example, Inputs(0).Value(0,0)). Scripts can use the IsArray, IsNumeric, etc., functions of VBScript to figure out how to access the incoming data if they are written as general-purpose script code.
· Strings are now accepted as input and returned as output. Strings use the scalar notation (no subscript) in terms of the Value member of Inputs or Outputs, because a string is a scalar value in Mathcad. A numeric conversion must be used to change it to a number in your script.
MathConnex is missing
If you upgrade to Mathcad 2001i from a previous version of Mathcad that included MathConnex, and you uninstall that version before installing Mathcad 2001i, you will lose MathConnex. To retain MathConnex on your system, simply install Mathcad 2001i over your previous version. To reinstall MathConnex, if you have already removed it, go to the Download area of the Mathcad web site (http://www.mathcad.com/download/download.asp) and download MathConnex.
Increasing Virtual Memory
If you are performing calculations involving large data sets (i.e., large vectors/matrices, large systems of differential equations, calculations using more than 100 variable definitions in a worksheet, etc.), you may want to increase the amount of virtual memory on your system to improve calculation speed. Mathcad may perform better with at least 1 gigabyte of free hard drive space for virtual memory usage.
Improvements to the ODBC Component
For users accessing data from a database, Mathcad has a default timeout of 15 seconds. If you are performing complex queries on large databases, this setting can be increased for queries that take longer than 15 seconds.
10. Where to Get More
Information
By reading these release notes, you can avoid many common problems in your use of Mathcad. If you do encounter any errors, please contact Technical Support with the details so that the problem can be investigated further.
In the US and Canada
·
Visit the Support area of the Mathcad web site at: www.mathcad.com
·
Send email to Mathcad Technical Support at: support@mathsoft.com
·
Fax your question to Mathcad Technical Support at:
(617) 444-8101, Attention Technical Support
· Mathcad Technical Support is available during business hours by calling (617) 444-8102
Outside the US and Canada
· Visit the Support area of the Mathcad web site at: www.mathcad.com
· Phone your local support center (refer to the technical support card enclosed with the package for specific information).
Online information
· The Resource Center contains a wealth of information about Mathcad including a variety of tutorials, Reference Tables, sample worksheets, and QuickSheet templates with built-in formulas. Choose Resource Center from the Help menu.
· The Mathcad Collaboratory is a free Internet forum for sharing ideas and files with other Mathcad users, accessible from within Mathcad. Click on the Collaboratory button from the main page of the Resource Center, or go directly to collab.mathsoft.com/~Mathcad2000.
· Online Help is available in Mathcad. See the Developer’s Reference for information about components, Automation, and creating User DLLs; see the Author’s Reference for information about publishing your work on the Web or in Electronic Books.
· Visit the Mathcad web site for sample Mathcad worksheets, updates, and support information. Click the mathcad.com button in the Mathcad Resource Center, or visit www.mathcad.com with your favorite browser.
=====================================================================
Mathcad is a registered
trademark and Electronic Book, QuickSheets, MathConnex, and Collaboratory are
trademarks of MathSoft Engineering and Education, Inc.
Axum and S-PLUS are
registered trademarks of Insightful, Inc.
Microsoft and Windows are
registered trademarks of Microsoft Corp. Windows NT is a trademark of Microsoft
Corp.
MATLAB is a registered
trademark of The MathWorks, Inc.
Adobe and Acrobat are
trademarks of Adobe Systems Incorporated, which may be registered in certain
jurisdictions.
OpenGL is a registered
trademark of Silicon Graphics, Inc.
SmartSketch is a registered
trademark of Intergraph Corporation.
techexplorer is a trademark
of IBM Corporation.
Other brand and product names referred to
are trademarks or registered trademarks of their respective owners.
11/29/2001