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C++ Math pow() Function

C++ Math pow() 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 pow()

This function is used to find the power of a given number.

Consider a base 'b' and exponent 'e'.

Power=be

Syntax

Its syntax would be :

double pow(double b, double e);
float pow(float b, float e);
long double pow(long double b, long double e);
promoted pow(type1  b, type2 e);

Note: If any argument is of long double type, then the return type is promoted to long double. If not, then the return type is promoted to double.

Parameter

b: 'b' is the number, whose power is to be calculated.

e: 'e' is the exponent.

Return value

It returns the base 'b'raised to the power 'e'.

Example 1

Let's see a simple example when both base and exponent are of integer type.

#include 
#include
using namespace std;
int main()
{
int base=4;
  int exponent=2;
  int power=pow(base,exponent);
  std::cout << "Power of a given number is :" <

Output:

Power of a given number is :16

Example 2

Let's see a example when base is of float type and exponent is of integer type.

#include 
#include
using namespace std;
int main()
{
   int base=4.5;
  int exponent=3;
  int power=pow(base,exponent);
  std::cout << "Power of a given number is :" <

Output:

Power of a given number is :64

Example 3

Let's see a simple example when both base and exponent are of float type..

#include 
#include
using namespace std;
int main()
{
   int base=2.5;
  int exponent=2.5;
  int power=pow(base,exponent);
  std::cout << "Power of a given number is :" <

Output:

Power of a given number is :4

Next TopicC++ Math Functions




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