$(D_KEYWORD true) if T is a numeric type, $(D_KEYWORD false) otherwise.
alias F = float; static assert(isNumeric!F); static assert(!isNumeric!bool); static assert(!isNumeric!char); static assert(!isNumeric!wchar);
$(D_PSYMBOL isIntegral!T), $(D_PSYMBOL isFloatingPoint), $(D_PSYMBOL isComplex).
Determines whether T is a numeric (floating point, integral or complex) type. *