C++ Math sqrt() Function

C++ Math sqrt() Function with tutorial for beginners and professionals with examples on isgreaterequal(), less(), islessequal(), islessgreater(), isunordered(), exp(), frexp(), ldexp(), log(), log10(), modf(), exp2(), expm1(), log1p(), log2(), logb(), scalbn(), scalbln() etc.

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C++ Math sqrt()

This function finds the square root of a given number.

Consider a argument 'arg' :

square_root of a number=√arg

Syntax

Syntax would be :

double sqrt(double arg);
float sqrt(float arg);
long double sqrt(long double arg);
double sqrt(integral arg);

Parameter

arg: It is the value of float or integer type.

Return value

It returns the square root of the argument arg.

Example 1

Let's see a simple example when argument 'arg' is of integer type.

#include 
#include
using namespace std;
int main()
{ int arg=16;
 std::cout << "Square root of a number is :" <

Output:

Square root of a number is :

Example 2

Let's see a simple example when argument 'arg' is of float type

#include 
#include
using namespace std;
int main()
{float arg=8.5;
 std::cout << "Square root of a number is :" <

Output:

Square root of a number is :2.91548

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