# C exp function

The C exp function is one of the Math Functions, used to return E raised to the power of a given value or specified expression. Here, E is Euler’s number, and it is approximately equal to 2.71828. The basic syntax of the exp function in this C Programming is

`double exp(double number);`

## C exp Function Example

The math exp Function allows you to find the 2.71828 raised to the power of a given value. In this program, We are going to find same and display the output.

```#include <stdio.h>
#include <math.h>

int main()
{
printf("\n The Exponential Value of e power 0      = %.4f ", exp(0));
printf("\n The Exponential Value of e power 1      = %.4f ", exp(1));

printf("\n The Exponential Value of e power 5      = %.4f ", exp(5));
printf("\n The Exponential Value of e power 6.4    = %.4f ", exp(6.4));

printf("\n The Exponential Value of e power -9.32  = %.4f ", exp(-9.32));
printf("\n The Exponential Value of e power -10.34 = %.4f ", exp(-10.34));

return 0;
}```

## exp Example 2

In this C Programming example, we are providing the user to enter their own value. Next, the program uses the exp function to find E raised to the power of the user-given number.

```#include <stdio.h>
#include <math.h>

int main()
{
float number, expValue;

printf(" Please Enter any Numeric Value :  ");
scanf("%f", &number);

expValue = exp(number);

printf("\n Exponential Value of e power %.2f = %.4f ", number, expValue);

return 0;
}```
`````` Please Enter any Numeric Value :  4.25

Exponential Value of e power 4.25 = 70.1054``````