https://docs.oracle.com/cd/E86824_01/html/E54769/tgamma-3m.html
tgamma - man pages section 3: Extended Library Functions, Volume 2
tgamma , tgammaf , tgammal - compute gamma function These functions compute the gamma() function of x .
man pagesextended librarysectionfunctionsvolume
https://www.intel.com/content/www/us/en/docs/onemkl/developer-reference-fortran/2025-0/v-tgamma.html
v?TGamma
Computes the gamma function of vector elements.
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