std::log10

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Defined in header <cmath>

float       log10( float arg );

double      log10( double arg );

long double log10( long double arg );

Computes the common (base 10) logarithm of arg.

[edit] Parameters

arg - floating point value

[edit] Return value

base 10 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] See also

log
computes natural (base e) logarithm (to base e) (ln(x))
(function)
pow
raises a number to the given power (xy)
(function)