[fpc-pascal] Special math. functions (erf, erfc, ...)

Johann Glaser Johann.Glaser at gmx.at
Sat Dec 16 22:33:17 CET 2006


Am Samstag, den 16.12.2006, 11:30 +0000 schrieb astlab at inwind.it:
> Hi Hansi, 
> > I'm searching for FreePascal implementations of some special
> > mathematical functions related to statistics like erf, erfc and some
> > other cumulative probability functions. Did anybody implement such
> > functions already (e.g. from the Numerical Recipies)?
> Some functions are available here in the unit ustat.zip:
> http://www.polarhome.com/~franco

Thanks for the hint! I can now calculate normal distribution and
chiĀ²-distribution. Do you know where I can find documentation on how to
calculate the ciritcal values (i.e. inverse) of students' (t)
distribution, F-distribution and for some non-parametric tests
(Newman-Keuls-test, Cochran-Test, U-Test, ...)


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