# How do you write square root in PHP?

## How do you write square root in PHP?

To solve this issue like other programming language PHP provides us with a built-in function sqrt() which can be used to calculate the square root of a number. The sqrt() function in PHP is used to calculate the square root of a number.

## What is the meaning of √ 3?

The square root of 3 is the positive real number that, when multiplied by itself, gives the number 3. It is denoted mathematically as √3 or 31/2. It is more precisely called the principal square root of 3, to distinguish it from the negative number with the same property.

**What is the function of sqrt?**

The SQRT Function is an Excel Math and Trigonometry function. This cheat sheet covers 100s of functions that are critical to know as an Excel analyst. It will provide the square root of a positive number. The function was introduced in MS Excel 2010.

**What is the return of the function sqrt ()?**

1. What is the return-type of the function sqrt()? Explanation: None.

### How do you square a number in PHP?

The sqrt() function is used to calculate the square root of a given number. This function is a built-in Math function used in PHP like pow(), rand(), is_nan() etc.

### What sqrt means?

n. (Mathematics) a number or quantity that when multiplied by itself gives a given number or quantity: 2 is a square root of 4, usually written √4 or 41/2.

**What is sqrt formula?**

The square root formula is used to find the square root of a number. We know the exponent formula: n√x x n = x1/n. So, the formula for writing the square root of a number is √x= x1/2.

**What is sqrt () in Excel?**

The Excel SQRT function returns the square root of a positive number. SQRT returns an error if number is negative. Find the positive square root of a number. Positive square root. =SQRT (number)

## What is the correct syntax for a function with arguments?

When one piece of code invokes or calls a function, it is done by the following syntax: variable = function_name ( args.); The function name must match exactly the name of the function in the function prototype. The args are a list of values (or variables containing values) that are “passed” into the function.

## Can a function return a structure?

You can return a structure from a function (or use the = operator) without any problems. You can pass structures to functions as well – a structure is exactly the same as any built-in type for purposes of parameter passing, return values, and assignment.

**What are the parameters of a sqrt function in PHP?**

Parameters: This function accepts a single parameter $value. It is the number whose square root you want to know. Return Value: It returns a floating-point value which is the square root of the argument $value passed to it. Below programs illustrate the working of sqrt () in PHP:

**How to calculate the square root of a number in PHP?**

To solve this issue like other programming language PHP provides us with a built-in function sqrt () which can be used to calculate the square root of a number. The sqrt () function in PHP is used to calculate the square root of a number. We already have discussed about sqrt () function in brief in the article PHP | Math functions.

### Which is function returns the square root of a number?

The sqrt () function returns the square root of a number.