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expm1() in C++
The function expm1() is used to calculate the exponential raised to the power of any number minus one. It returns the value of (exponential raised to the power of a) - 1.
Here is the mathematical expression of expm1(),
expm1(a) = (e^a) - 1
Here is the syntax of expm1() in C++ language,
float expm1(variable_name);
Here,
variable_name − Any name given to the variable whose value is calculated.
Here is an example of expm1() in C++ language,
Example
#include <iostream> #include <cmath> using namespace std; int main() { int x = 10; float y = 8.28; cout << "The value of x : " << expm1(x); cout << "\nThe value of y : " << expm1(y); return 0; }
Output
Here is the output
The value of x : 22025.5 The value of y : 3943.19
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