## Javascript - How to squared a number?

Using the javascript function

function squareIt(number) { return number * number; }

When given the number 4294967296 the function returns 18446744073709552000 is returned

Everyone knows the real answer is 18446744073709551616 :-)

I guess this is to to with rounding on my 32-bit machine. However, would this script give the right answer on a 64 bit machine? Has anyone tried this?

ChrisV- see this post. Also it easier for people to evaluate your question by typing the following JavaScript directly into the browser URL textbox:

javascript:4294967296*4294967296

**What's the fastest way to square a number in JavaScript?,** Note: Questions like this change over time as browser engines change how their optimizations work. For a recent look comparing: Math.pow(x1 What's the fastest way to square a number in JavaScript? function squareIt(number) { return Math.pow(number,2); } function squareIt(number) { return number * number; } Or some other method

Javascript uses 64 bit floating point arithmetic internally for numerical calculations - the results you see are a reflection of this, and will happene regardless of the underlying architecture.

**Square each number in an array in javascript,** Math.sqrt gives you square root not square of a number. Use Math.pow with second argument of 2 . Here’s how you call the Math.pow method to square a number: int i = 2; int square = Math.pow(i, 2); More power multipliers. In general I just multiply the number by itself to get the squared value, but the advantage of the Math.pow method is that once you know how to use it, you can easily get the cube of a number, like this: int i = 2; int square = Math.pow(i, 3);

what about this

function squareIt(number){ return Math.pow(number,2) }

**Math.pow(),** What is the best way to square a number in JavaScript? Let's say I want to find 4 squared, i.e. 4^2 or 4 to the power of 2. Right now I have this:. What is the best way to square a number in JavaScript? Let's say I want to find 4 squared, i.e. 4^2 or 4 to the power of 2. Right now I have this: var x = 5; var x_squared = Math.pow (x,2);

Here is one more example based on **BigInteger.js**.

alert(bigInt(4294967296).square());

<script src="https://cdnjs.cloudflare.com/ajax/libs/big-integer/1.6.40/BigInteger.min.js"></script>

**What is the best way to square a number in JavaScript?,** pow() function in JavaScript is used to power of a number i.e., the value of number raised to some exponent. Since the Math.pow() is a static method of Math and You can try to run the following code to get the square root of a number: <html> <head> <title>JavaScript Math sqrt () Method</title> </head> <body> <script> var value = Math.sqrt( 0.5 ); document.write("First Value : " + value ); var value = Math.sqrt( 49 ); document.write("<br />Second Value : " + value ); </script> </body> </html>.

**JavaScript,** To get the square root, use the Math.sqrt() method. This method returns the square root of a number. If the value of a number is negative, sqrt Square Root. The square root of a number is a value that, when multiplied by itself, gives the number. EXAMPLE: In JavaScript, by using SQRT property & sqrt()Method we can return the square root value. Difference between SQRT & sqrt . Both SQRT & sqrt() are used to find the value of square root in JavaScript. SQRT is a property, where as sqrt() is a method.

**How to get the square root of a number in JavaScript?,** Math.js is an extensive math library for JavaScript and Node.js. It features big numbers, complex numbers, matrices, units, and a flexible expression parser. A number. Return value. The square root of the given number. If the number is negative, NaN is returned. Description. If the value of x is negative, Math.sqrt() returns NaN. Because sqrt() is a static method of Math, you always use it as Math.sqrt(), rather than as a method of a Math object you created (Math is not a constructor). Examples

**Function square,** var age = prompt("How old are you please enter your age: "); if (age < 0) { console.log("Invalid entry - user entered a negative value"); } else Returns a random number between 0 and 1: round(x) Rounds x to the nearest integer: sin(x) Returns the sine of x (x is in radians) sinh(x) Returns the hyperbolic sine of x: sqrt(x) Returns the square root of x: tan(x) Returns the tangent of an angle: tanh(x) Returns the hyperbolic tangent of a number: trunc(x) Returns the integer part of a number (x)