g77.info: ErFC Intrinsic

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ErFC Intrinsic

     ErFC(X)

ErFC: `REAL' function, the `KIND=' value of the type being that of
argument X.

X: `REAL'; scalar; INTENT(IN).

Intrinsic groups: `unix'.

Description:

   Returns the complementary error function of X: `ERFC(R) = 1 -
ERF(R)' (except that the result might be more accurate than explicitly
evaluating that formulae would give).  See `erfc(3m)', which provides
the implementation.