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

Need to create poker site with bitcoins, Need to create Poker Site with Bit...

Need to create Poker Site with Bitcoins We want to customize the poker software, we need it run both on web site (html5) and as desktop software -We want to customize Affilia

Performance issues on amazon ec2, I presently host my websites on Amazon EC...

I presently host my websites on Amazon EC2. I seem to be having several performance issues such as longer than expected loading times. My sites build with Wordpress. I use Cl

File menu in dreamweaver, File Menu: Under it we have New, Save as, Save, S...

File Menu: Under it we have New, Save as, Save, Save as template, Export, Import, Preview in browser so on options. Edit Menu: In this menu we have Copy,  Cut, Paste, Redo, Undo

Need php to help to develop msds project tracking system, Need to help to d...

Need to help to develop MSDS Project Tracking System using PHP Object Oriented PHP, MySQL, jQuery, jQuery UI, Job Description- Your responsibilities 1) Review business req

Returning a value, Another function of a function is to return a value. Ima...

Another function of a function is to return a value. Imagine we have the following function: IGNOU

Create a date instance, The Date object is utilized to work with dates & ti...

The Date object is utilized to work with dates & times. Creating a Date Instance You must create an instance of the Date object along with the "new" keyword. The following

Need help in personal account component for joomla, Personal account compon...

Personal account component for Joomla It is essential to develop a component for CMS Joomla which will permit visitors of a site to receive necessary information of financial ch

Design a web-site for the wider dissemination, (a) For electronic transacti...

(a) For electronic transactions (1) authentication and (2) non-repudiation are important legal concerns. Describe what each is and why each is of particular concern in electronic t

Explain the design features of web site, Evaluate the features of the MU we...

Evaluate the features of the MU website in terms of its usability, legal requirements and ease of search by search engines. You need to make use of relevant usability evaluation te

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