cdf_cauchy SciMax Toolbox cdf_continuous_uniform

SciMax Toolbox >> cdf_chi2

cdf_chi2

Maxima Function

Calling Sequence

cdf_chi2 (x,n)

Description

Returns the value at x of the distribution function of a Chi-square random variable Chi^2(n), with n>0.

This function has no closed form and it is numerically computed if the global variable numer equals true, otherwise it returns a nominal expression based on the gamma distribution, since the Chi^2(n) random variable is equivalent to the Gamma(n/2,2).

(%i1) load (distrib)$
(%i2) cdf_chi2(3,4);
(%o2)                  cdf_gamma(3, 2, 2)
(%i3) cdf_chi2(3,4),numer;
(%o3)                   .4421745996289249
cdf_cauchy SciMax Toolbox cdf_continuous_uniform