Programmer Guide/Command Reference/EVAL/exp: Difference between revisions

Revision as of 10:38, 21 April 2011

Exponential function

Usage: This function has several usage formats where the evaluation and the type of the result r depends on. The table below shows the possible usages and data types.

usage	evaluation	data type of arguments	data type of result r
`exp(x)`	r_i,j = e ^ x_i,j	x can be any type	same type as x
`exp(x, y_S)`	r_i,j = y_S ^ x_i,j	x can be any type y_S must be a scalar	same type as x
`exp(x_S, y)`	r_i,j = y_i,j ^ x_S	x_S must be a scalar y can be any type	same type as y
`exp(x, y)`	r_i,j = y_i,j ^ x_i,j	x must be a vector or matrix y must have the same type as x	same type as x and y

Note: The operator prefix '?' combined with the power operator '^' can be used instead of this function.
See also: log

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+:Note: The [[../#Operators|operator prefix '?']] combined with the [[../#Operators|power operator '^']] can be used instead of this function.
-Note: The [[../#Operators|operator prefix '?']] combined with the [[../#Operators|power operator '^']] can be used instead of this function.
+;See also: [[../log|log]]
 [[../#Functions|<function list>]]