Erfc
Definition:
/math-cd0370f0446a9872282eb8202223f29b.png "erfc = erfc(x)")
calculates an approximate value for the complement of the error function
/math-38569ddb37e6d2c84182388c28dc2fdc.png "erfc(x)=\frac 1{\sqrt{\pi }}\int_x^\infty e^{\frac{-u^2}2}du=1-{erf(x)}")
The approximation is based on a Chebyshev expansion.
For more information please review the s15adc function in the NAG document.
Parameters:
- x (input, double)
- The argument x of the function.
- erfc (output, double)
- Approximate value of the complement of the error function.