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3.5.1.3.33 Erfcx
Definition:
The y = erfcx(x) function is the scaled complementary error function, defined as
/math-3b83966994b3b8062401cae3ef2b4c0f.png?v=0 "erfcx(x) = e^{x^2}\cdot erfc(x)")
where erfc(x) is the complementary error function.
When x is very large, erfcx(x) is approximately /math-47c1139e97fa59445d6421693318e291.png?v=0 "\frac 1{\sqrt{\pi }\cdot x}")
.
Parameters:
- x (input, double)
- The argument x of the function.
- y (output, double)
- The approximate value of the scaled complementary error function.