exp

Computes the value of e (the base of natural logarithms) raised to the power of the input.

Prototype

	function exp (
		value  : numeric   
	)

	return_val [dimsizes(value)] :  float or double

value

An array of one or more floating point values of any dimension.

Returns an array dimensioned the same as value.

The return type is floating point if the input is floating point, and double if the input is of type double.

This function returns e^value. Missing values are ignored.

Example 1

  f = -0.2
  exp_f = exp(f)
  print(exp_f)        ; Should be 0.8187308

Example 2: Find the cube root of 3112.136 [=x^3]

  x = exp( log(3112.136)/3.0 )
  print( x )        ; Should be 14.6

Example 3: Solve the following for x: y = 9.328*(0.729-x^3) - 1.8

   y = 2.0
   x = exp( log(0.729-((y+1.8)/9.328))/3.0 )  ; = 0.685