InverseErfc
InverseErfc[s] gives the inverse complementary error function, solving for z in s = erfc(z).
Examples
Compute inverse:
InverseErfc[0.5]
(* 0.476936 *)Verify relationship:
Erfc[InverseErfc[1.5]]
(* 1.5 *)Please visit the official Wolfram Language Reference for more details.