aureooms-js-number/test/src/logarithmic/log.js

Primitive number type arithmetic for JavaScript

import test from 'ava' ;
import * as number from '../../../src' ;

const e = Math.E ;

test ( "log" , t => {

	const one = function ( a , b ) {
		const expected = Math.log( b) / Math.log( a ) ;
		t.deepEqual ( number.log ( a , b ) , expected , "log ( " + a + " , " + b + " )" ) ;
	} ;

	one ( 2 , 1 ) ;
	one ( 2 , 2 * 2 * 2 ) ;
	one ( 2 , 2 * 2 * 2 * 2 ) ;

	one ( 2 , 2 * 2 * 2 * Math.sqrt ( 2 ) ) ;

	one ( 3 , 3 * 3 ) ;
	one ( 3 , 3 * 3 * 3 * 3 ) ;

	one ( 5 , 5 * 5 * Math.sqrt ( 5 ) ) ;

	one ( e , e * Math.sqrt ( e ) ) ;
	one ( e , e * e * Math.sqrt ( e ) ) ;
	one ( e , e * e * e * Math.sqrt ( e ) ) ;

} ) ;