Common Logarithm
Evaluate the common logarithm.
The common logarithm (logarithm with base 10) is defined for any positive real number as
Usage
var log10 = require( '@stdlib/math/base/special/log10' );
log10( x )
Evaluates the common logarithm.
var v = log10( 100.0 );
// returns 2.0
v = log10( 8.0 );
// returns ~0.903
v = log10( 0.0 );
// returns -Infinity
v = log10( Infinity );
// returns Infinity
v = log10( NaN );
// returns NaN
For negative numbers, the common logarithm is not defined.
var v = log10( -4.0 );
// returns NaN
Examples
var randu = require( '@stdlib/random/base/randu' );
var round = require( '@stdlib/math/base/special/round' );
var log10 = require( '@stdlib/math/base/special/log10' );
var x;
var i;
for ( i = 0; i < 100; i++ ) {
x = round( randu() * 100.0 );
console.log( 'log10(%d) = %d', x, log10( x ) );
}