Range Variable Operator

Keystroke: ;

a (, b) .. c

Returns a variable that takes on a sequence of values. These can be used to define arrays, plot functions, iterate solutions, or control sums and products.

Operands:

• a, b, and c are real scalars, all with the same units.

  b is optional, but when used, it represents the value of a plus the step size to be used in generating the sequence of numbers, so that a < b < c. When b is not specified, the default step size is 1.

  When defining a range variable with units, b is required.

Notes:

• All numbers in the definition must be real.
• The dimensions (if any) of all numbers in the range must match.
• A range variable cannot be defined in terms of another range variable.
• If you use a fractional increment for a range variable, you cannot use that range variable as a subscript because subscripts must be integers.

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