log
From cppreference.com
| Defined in header
<math.h>
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| float logf( float arg );
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(since C99) | |
| double log( double arg );
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| long double logl( long double arg );
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(since C99) | |
Computes the natural (base e) logarithm of arg.
Contents |
[edit] Parameters
| arg | - | floating point value |
[edit] Return value
Natural logarithm of arg.
Domain error occurs if arg is negative. NAN is returned in that case.
Range error occurs if arg is 0. -HUGE_VAL is returned in that case.
[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| returns e raised to the given power (ex) (function) |
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| computes common (base 10) logarithm (log10(x)) (function) |
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| raises a number to the given power (xy) (function) |
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C++ documentation for log
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