Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Predefined Objects
Let us assume some of the most frequently utilized predefined objects provided in Javascript.
Math object
In most of the applications we have to perform calculations, whether this is accounting software or scientific software. Programmers are frequently typecast as good mathematicians. Every mathematician required a calculator sometimes, or in the particular case of JavaScript, the Math object. If we desire to calculate "2.5 to the power of 8" or "Sin0.9" in your script, then JavaScript's virtual calculator is what you desire. The Math object have a number of manipulating functions:
The Math object
Methods
Description
Math.abs(x)
Return absolute value of x
Math.acos(x)
Return arc cosine of x in radians
Math.asin(x)
Return arc sine of x in radians
Math.atan(x)
Return arc tan of x in radians
Math.atan2(x, y)
Counterclockwise angle among x axis & point (x,y)
Math.ceil(x)
Rounds a number up
Math.cos(x)
Trigonometric cosine of x (x in radians)
Math.exp(x)
Exponential method ex
Math.floor(x)
Rounds number down
Math.log(x)
Natural logarithm of x (base e)
Math.max(a, b)
Returns the larger of two values
Math.min(a, b)
Returns the smaller of two values
Math.pow(x, y)
Returns xy
Math.round(x)
Rounds x to the closest integer
Math.sin(x)
Trigonometric sine of x (x in radians)
Math.sqrt(x)
Square root of x
Math.tan(x)
Trigonometric tangent of x (x in radians)
Properties
Math.E
Euler's constant ( ~ 2.718)
Math.LN10
Natural logarithm of 10 (~ 2.302)
Math.LN2
Natural logarithm of 2 (~ 0.693)
Math.LOG10E
Base 10 logarithm of Euler's constant (~ 0.0434)
Math.LOG2E
Base 2 logarithm of Euler's constant (~1.442)
Math.PI
The ratio of a circle's circumference to its diameter
(~3.141)
Math.SQRT1_2
Square root of 0.5 ( ~ 0.707)
Math.SQRT2
Square root of 2.0 ( ~ 1.414)
Let us encompass Javascript perform some mathematical calculations:
//calculate e5
Math.exp(5)
//calculate cos(2PI)
Math.cos(2*Math.PI)
The "with" statement
If you intend to invoke Math multiple times in your script, a good statement to remember is "with." Using it you can omit the "Math." prefix for any subsequent Math properties/methods:
with (Math){ var x= sin(3.5) var y=tan(5)
var result=max(x,y)
}
How to Upgrade Joomla being used from 1.5 to 3.2 We have a website which we want to either upgrade the Joomla CMA or swith to WordPress. Not a huge site. Desired Skills are M
Develop Map-based community website Community website allowing registered users as well as non-registered guests to post their location on a Google map. Visitors can then search
How can we increase the execution time of a php script? By the use of void set_time_limit(int seconds) Set number of seconds a script is allowed to run. If this is reached,
Macro to search patent information Objective To develop a macro that is accomplished to search through publicly available USPTO.gov database as well as count number of times fir
Create a shopping cart I have an incomplete shopping cart. The preceding expert didn't finish the project. He has done 70% of the work as well as then sent it to me. I would lik
HTML is built up of many elements, lot of which is overlooked. Even though you can create a Website with the fundamental knowledge of HTML, to take benefit of many of the advanced
Need help for Magento shoe store I want a quote for a shoe store website in magento with the following specification. I want estimate of hours and hour charge: Functionalitie
Shopping Cart Purpose – Allows user to browse while keeping track of the items in which they will purchase at the end on the order page link and this will give a final price for al
LinkedIn JavaScript API on WordPress site I would like assistance implementing LinkedIn JavaScript API so users of my WordPress site can "Sign In With LinkedIn". The goal is
Let us begin with a brief overview of Dreamweaver work area. If you haven't launched Dreamweaver already, double-click on the Dreamweaver icon on your desktop to do so. While yo
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd