GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 6.2(Zoot) |
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pow(3) |
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exp, log, log10, pow − exponential, logarithmic and power functions
#include <math.h>
double exp(double x);
double log(double x);
double log10(double x);
double pow(double x, double y);
The exp() function returns the value of e (the base of natural logarithms) raised to the power of x.
The log() function returns the natural logarithm of x.
The log10() function returns the base-10 logarithm of x.
The pow() function returns the value of x raised to the power of y.
The log() and log10() functions can return the following errors:
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EDOM |
The argument x is negative. | ||
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ERANGE |
The argument x is zero. The log of zero is not defined. |
The pow() function can return the following error:
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EDOM |
The argument x is negative and y is not an integral value. This would result in a complex number. |
SVID 3, POSIX, BSD 4.3, ISO 9899
sqrt(3), cbrt(3)
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pow(3) | |