.\"returns the natural logarithm of a float .DT log $MUDNAME$ driver help log .SH Name .SI 5 log() - returns the natural logarithm of a float .EI .SH Synopsis .SI 5 float log( float f ); .EI .SH Description .SP 5 5 Returns the natural logarithm of its argument, `f'. `f' must be positive. .EP .SH See also .SI 5 exp(), pow(), sqrt() .EI