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CPSIName:
where z is a complex number with a positive real component, is the gamma function, and is the derivative of the gamma function. Dataplot computes this function using the CPSI routines from "Computation of Special Functions" (see the References section below).
where <xr> is a variable, number, or parameter containing positive values; <xc> is a variable, number, or parameter; positive values; <yr> is a variable or a parameter (depending on what <xr> and <xc> are) where the computed psi values are stored; and where the <SUBSET/EXCEPT/FOR qualification> is optional. This syntax computes the real component of the complex psi function. The <xr> and <xc> values are the real and complex components of the input argument respectively.
where <xr> is a variable, number, or parameter containing positive values; <xc> is a variable, number, or parameter; positive values; <yr> is a variable or a parameter (depending on what <xr> and <xc> are) where the computed psi values are stored; and where the <SUBSET/EXCEPT/FOR qualification> is optional. This syntax computes the complex component of the complex psi function. The <xr> and <xc> values are the real and complex components of the input argument respectively.
LET A = CPSII(1,2)
LET YR = CPSI(XR,2)
LET YR = CPSI(XR,XC)
"Handbook of Mathematical Functions, Applied Mathematics Series, Vol. 55", Abramowitz and Stegun, National Bureau of Standards, 1964 (chapter 6).
MULTIPLOT CORNER COORDINATES TITLE AUTOMATIC PLOT CPSI(XR,2) FOR XR = 0.1 0.1 5 PLOT CPSI(XR,5) FOR XR = 0.1 0.1 5 PLOT CPSI(XR,2) FOR XR = 0.1 0.1 5 PLOT CPSI(XR,5) FOR XR = 0.1 0.1 5 END OF MULTIPLOT
Date created: 6/5/2001 |