IMSL Mathematics Reference Guide > Special Functions > ELE Function (PV-WAVE Advantage)
  

ELE Function (PV-WAVE Advantage)
Evaluates the complete elliptic integral of the second kind E(x).
Usage
result = ELE(x)
Input Parameters
x—Argument for which the function value is desired.
Returned Value
result—The complete elliptic integral E(x).
Input Keywords
Double—If present and nonzero, double precision is used.
Discussion
The complete elliptic integral of the second kind is defined to be:
The argument x must satisfy 0 x < 1; otherwise, ELE returns the largest representable floating-point number.
The function E(x) is computed using the routine ELRF and ELRD. The computation is done using the relation:
Example
The integral E(0.33) is evaluated.
PRINT, ELE(0.33)
; PV-WAVE prints: 1.43183

Version 2017.0
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