NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | ATTRIBUTES | SEE ALSO
$(NUCLEUS_DIR)/lib/libm.a #include <math.h>double erf(double x);
The function or functions documented here may not be used safely in all application contexts with all APIs provided in the ChorusOS 5.0 product.
See API(5FEA) for details.
These functions calculate the error function of x .
The erf() function calculates the error function of x ; where:
erf(x) = 2/sqrt(pi)*integral from 0 to x of exp(-t*t) dt
The erfc() function calculates the complementary error function of x , that is, erfc() subtracts the result of the error function erf x() from 1.0. This is useful when x is a large value, as decimal places can be lost.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
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Interface Stability | Evolving |
NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | ATTRIBUTES | SEE ALSO