Exponential() in C

There is no built-in exponential() function. However, you can calculate the exponential (e^x) of a number by using the exp() function, which is part of the math library (math.h). The exp() function returns the exponential value of the given argument.

Here’s the prototype of the exp() function:

double exp(double x);

• x: The exponent for which you want to calculate the exponential value (e^x).

Here’s an example of how to use the exp() function:

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

int main() {
    double x = 2.0;  // Exponent value

    double result = exp(x);

    printf("e^%.2f = %.4f\n", x, result);

    return 0;
}

In this example, we calculate and print the value of e^2, which is approximately 7.3891.

Make sure to include the math.h header at the beginning of your program when using mathematical functions like exp(). Additionally, link your program with the math library when compiling by adding the -lm flag, like this:

gcc your_program.c -o your_program -lm

This allows the compiler to link your program with the math library, which contains the exp() function.