---
layout: doc
title: floats / log
---
# log

### NAME

    log() - returns the natural logarithm of a float

### SYNOPSIS

    float log( float f );

### DESCRIPTION

    Returns  the natural logarithm of its argument, 'f'.  'f' must be posi‐
    tive.

### SEE ALSO

    exp(3), pow(3), sqrt(3)

