Incomplete Gamma and Related Functions - 8.13 Zeros

DLMF	Formula	Constraints	Maple	Mathematica	Symbolic Maple	Symbolic Mathematica	Numeric Maple	Numeric Mathematica
8.13.E1	${\displaystyle{\displaystyle x_{-}(a)<\ln|a|}}$ x_{-}(a) < \ln@@{|a|}	${\displaystyle{\displaystyle-1<a,a<0}}$	x[-](a) < ln(abs(a))	Subscript[x, -][a] < Log[Abs[a]]	Error	Failure	-	Error