Positive(org.apache.commons.math.special.GammaTest) testLogGammaNegative(org.apache.commons.math.special.GammaTest) testRegularizedGammaPositivePositive(org.apache.commons.math.special.GammaTest) testRegularizedGammaPositiveNegative(org.apache.commons.math.special.GammaTest) testLogGammaNan(org.apache.commons.math.special.GammaTest) testRegularizedGammaN