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

Update php and html form, Update PHP / HTML form I need the HTML moderni...

Update PHP / HTML form I need the HTML modernized to HTML5. The customer likewise has to fill in a phone number and email address, else the form should not validate. As of

Websites to create real time user conversations, Prototype-WebRTC widget fo...

Prototype-WebRTC widget for websites to create real time user conversations The project comprise a server side built using node.js and a client side widget using webRTC. Users u

What is the difference between an intranet and an extranet, Question 1: ...

Question 1: (a) What is the difference between an intranet and an extranet? (b) Briefly mention and explain four types of applications present on the Internet? (c) (i) W

We need a back-end programmer, We need a back-end programmer My name is ...

We need a back-end programmer My name is David from the Netherlands as well as I am in the middle want of developing a site with HQ drum tutorials with the option do offer it in

Formatting tags, Now let us look at some more tags which can be used to for...

Now let us look at some more tags which can be used to format text. These are all given in the example illustrated in Figure  XYZ&l

I am seeking help in simple wordpress website design, A Simple WordPress we...

A Simple WordPress website /design is almost done I am seeking to hire an experienced web person to design website. Design is nearly ready. I would alike this site to be very

Custom wordpress site dev and integration with custom data, Custom WordPres...

Custom WordPress site dev and integration with custom data-driven application We have an current site that has been built with native WP functionality. A modest WP user table

How to get started with this, I want to start learning PHP programming, wha...

I want to start learning PHP programming, what I should do?

Help with joomla-opencart problem, Help with Joomla/Opencart problem I h...

Help with Joomla/Opencart problem I have a website made on Joomla 2.5 using a component called AceShop (which is a bridge for Opencart). I have newly moved the website to a new

#title: , Create the xhtml markup that produces the table shown below. Use ...

Create the xhtml markup that produces the table shown below. Use and tags as necessary. The camel.gif image can be downloaded from http://www.deitel.com/books/iw3htp4/

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