w3schools
Search W3Schools :  
  
HOME HTML CSS XML JAVASCRIPT ASP PHP SQL MORE...   References Examples Forum About

JavaScript Math Object

« Previous Next Chapter »

Math Object

The Math object allows you to perform mathematical tasks.

Syntax

var pi_value=Math.PI;
var sqrt_value=Math.sqrt(16);

Note: Math is not a constructor. All properties and methods of Math can be called by using Math as an object without creating it.

Math Object Properties

F: Firefox, IE: Internet Explorer

Property Description F IE
E Returns Euler's number (approx. 2.718) 1 3
LN2 Returns the natural logarithm of 2 (approx. 0.693) 1 3
LN10 Returns the natural logarithm of 10 (approx. 2.302) 1 3
LOG2E Returns the base-2 logarithm of E (approx. 1.442) 1 3
LOG10E Returns the base-10 logarithm of E (approx. 0.434) 1 3
PI Returns PI (approx. 3.14159) 1 3
SQRT1_2 Returns the square root of 1/2 (approx. 0.707) 1 3
SQRT2 Returns the square root of 2 (approx. 1.414) 1 3

Math Object Methods

Method Description F IE
abs(x) Returns the absolute value of a number 1 3
acos(x) Returns the arccosine of a number 1 3
asin(x) Returns the arcsine of a number 1 3
atan(x) Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians 1 3
atan2(y,x) Returns the angle theta of an (x,y) point as a numeric value between -PI and PI radians 1 3
ceil(x) Returns the value of a number rounded upwards to the nearest integer 1 3
cos(x) Returns the cosine of a number 1 3
exp(x) Returns the value of Ex 1 3
floor(x) Returns the value of a number rounded downwards to the nearest integer 1 3
log(x) Returns the natural logarithm (base E) of a number 1 3
max(x,y) Returns the number with the highest value of x and y 1 3
min(x,y) Returns the number with the lowest value of x and y 1 3
pow(x,y) Returns the value of x to the power of y 1 3
random() Returns a random number between 0 and 1 1 3
round(x) Rounds a number to the nearest integer 1 3
sin(x) Returns the sine of a number 1 3
sqrt(x) Returns the square root of a number 1 3
tan(x) Returns the tangent of an angle 1 3
toSource() Represents the source code of an object 1 -
valueOf() Returns the primitive value of a Math object 1 4

« Previous Next Chapter »


Altova® MissionKit® - Integrated Suite of XML tools

Altova MissionKit

The Altova MissionKit, recent winner of the Jolt Product Excellence and Productivity Award for Best Development Environment, is an integrated suite of tools ideal for:

  • XML development
  • Web & Web services development
  • Data mapping & integration
  • Rendering & publishing XML & database data
  • XBRL validation, taxonomy editing, transformation & rendering

The MissionKit for XML Developers includes XMLSpy®, MapForce®, and StyleVision® plus 3 additional tools for less than the price of 2.

Try all 6 products free for 30 days!

Download a fully-functional free trial

  Altova Missionkit


WEB HOSTING
Best Web Hosting
PHP MySQL Hosting
Top 10 Web Hosting
UK Reseller Hosting
Web Hosting
FREE Web Hosting
Top Web Hosting
Windows Hosting
WEB BUILDING
Download XML editor
FREE Flash Website
FREE Web Templates
Website Monetization
FLIGHT TICKETS
Find the cheapest flight
to any destination now!
EDUCATION
US Web Design Schools
HTML Certification
JavaScript Certification
XML Certification
PHP Certification
ASP Certification
STATISTICS
Browser Statistics
Browser OS
Browser Display
W3Schools.com HOME | TOP | PRINT | FORUM | ABOUT
W3Schools is for training only. We do not warrant the correctness of its content. The risk from using it lies entirely with the user.
While using this site, you agree to have read and accepted our terms of use and privacy policy.
Copyright 1999-2009 by Refsnes Data. All Rights Reserved.