Math object, PHP Web Programming

Assignment Help:

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

Description

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 e                                                                                                                                    

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)

}


Related Discussions:- Math object

Label, , an HTML 4.0 element supported through MSIE & Netscape 6, describe ...

, an HTML 4.0 element supported through MSIE & Netscape 6, describe a set of text that is linked with a specific form element. For instance, the code below specifies t

I want help in vbulletin clean and update, I want help in vBulletin clean a...

I want help in vBulletin clean and update I have an installation of vBulletin that has been compromised, I have taken some steps to secure my installation but I need someone to

Seeking a web expert who is able to make changes to template, Web designer ...

Web designer / programmer I am seeking a web expert who is able to make changes to templates, flash, html and php scripting for primarily Wordpress, with a bit of OSCommerce, Jo

Explain different types of statement which are there in php, What are the d...

What are the different types of statements which are present in PHP? There are four types of PHP statements which are present. They are as follows: • Simple statement- the

Change quantity button cannot be functioned, error_reporting(0); session_...

error_reporting(0); session_start(); header(''Content-type: text/html; charset=utf-8''); include_once(''../../xajax_core/xajax.inc.php''); // ?? xajax $xajax = new xajax()

Looking for a long term developer, Looking For a Long Term Developer I a...

Looking For a Long Term Developer I am seeking to expand my team further and in need of one more Developer to join us rapidly to handle multiple projects as and when required at

Need help in house manager project, Need help in house manager project W...

Need help in house manager project Want to create full site with three level of users: admin manager customer there is very special relationship between customer to manag

Need a expert to check cookie tracking on our site, Check cookie tracking o...

Check cookie tracking on our site We have influence radius (affiliate tracking) as well as we have people sending us traffic and conversions. We want someone to check as well as

We are presently in search of a web site developer, Website Developer We...

Website Developer We are presently in search of a web site developer. Job Description- We're looking for a Web Developer. Your responsibilities- a) Review business requ

App developer needed, App Developer Needed a) Excellent coding skills fo...

App Developer Needed a) Excellent coding skills for developing an app that can work for IPhone and/ or Android. b) Creative and team player. c) Hardworking and passionate.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd