------------------------------------------------------------------------ IMSL Name: CWPLD/ZWPLD (Single/Double precision version) Revised: May 29, 1991 Purpose: Evaluate the first derivative of the Weierstrass' P function in the lemniscatic case for complex argument with unit period parallelogram. Usage: CWPLD(Z) Arguments: Z - Complex argument for which the function value is desired. (Input) CWPLD - Complex function value. (Output) Keyword: Elliptic GAMS: C15 Chapter: SFUN/LIBRARY Elliptic and Related Functions Page No.: SFUN/LIBRARY User's Manual page 189