log10 - Logarithm with base 10

Name:log10

Category:math

Programming Language:php

One-line Description:Logarithm with base 10.

Definition and usage

log10() has a logarithm with base 10.

In this example, we apply the log10() function to different numbers:

 <?php
echo ( log10 ( 2.7183 ) ) ;
echo ( log10 ( 2 ) ) ;
echo ( log10 ( 1 ) ) ;
echo ( log10 ( 0 ) ) ;
echo ( log10 ( - 1 ) ) ;
?>

Try it yourself

 log10 ( x )

parameter	describe
x	Required. A number.

Returns the logarithm of parameter x with base 10.

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