Question

How to use the function Math.log() to get the natural logarithm (base e) of a numbers in JavaScript

Answer 1

document.write("Math.log(0) = " + Math.log(0) + "<br />");
document.write("Math.log(1) = " + Math.log(1) + "<br />");
document.write("Math.log(-1) = " + Math.log(-1) + "<br />");
document.write("Math.log(5) = " + Math.log(5) + "<br />");
document.write("Math.log(10) = " + Math.log(10) + "<br />");
document.write("Math.log(100) = " + Math.log(100) + "<br />");
document.write("Math.log(125) = " + Math.log(125) + "<br />");
document.write("Math.log(125) / Math.log(5) = " + Math.log(125) / Math.log(5) + "<br />");

 
/*
run

Math.log(0) = -Infinity
Math.log(1) = 0
Math.log(-1) = NaN
Math.log(5) = 1.6094379124341002
Math.log(10) = 2.302585092994046
Math.log(100) = 4.605170185988092
Math.log(125) = 4.8283137373023015
Math.log(125) / Math.log(5) = 3.0000000000000004
 
*/

 

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