erfc function

double erfc(
  1. double x
)

Return the complementary error function of x, 1 - erf(x), without the loss of precision of the subtraction for large x.

  • x : double

Returns

  • y : double

References

  1. "scipy.special.erfc". https://docs.scipy.org/doc/scipy/reference/generated/scipy.special.erfc.html. Retrieved 2026-10-13.
  2. W. J. Cody, "Rational Chebyshev approximations for the error function", Mathematics of Computation 23 (1969), 631-637.

Examples

print(erfc(3.0));

/* output:
0.000022090496998585438
*/

Implementation

double erfc(double x) => _calerf(x, _Kind.erfc);