Symbolic Evaluation of Operators

To evaluate integrals, derivatives, matrix operations (including most matrix functions), summations and products symbolically, select the expression, typed with Mathcad operators, and either:

• Type [Ctrl][.], or use the Symbolics toolbar to evaluate using the live symbolics operator.

  - or -

• Choose Evaluate > Symbolically from the Symbolics menu.

There are several operators that are only for use with the symbolic processor. These are:

• The indefinite integral, [Ctrl]I.

  - and -

• Limits.

Notes:

• For definite integrals, the symbolic processor finds an indefinite integral and subtracts its value at the lower limit of integration from its value at the upper limit. The solution to an indefinite integral is not unique. If f(x) is an integral of a given function, so is f(x) + C for a constant C.
• To take derivatives or integrals, you can either use the Mathcad operators or choose from the Variable option on the Symbolics menu. The expression should not include an integral operator if you are integrating, unless you want to take a double integral.
• Many transformations do not apply to the matrix as a whole. For example, to simplify the expressions in a matrix you must simplify each element. To perform typical matrix manipulations, you can either use the Mathcad operators for transposition, inversion, or determinant, or you can choose from the Matrix option on the Symbolics menu.

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