log1p() in C++ program

C++Server Side ProgrammingProgramming

We are given with a variable of any type and the task is to find the result using the function log1p(). log1p() is an analytical function that takes an argument ‘a’ and also has a return value.

Syntax

double log1p (double x);
Where x ranges between [-1, ?]
float log1p (float x);

Return Type − This function returns a non-zero value if the argument is greater than -1 else it will return a non-numeric value.

Example

Input

a = 20.34

Output

3.06058

Input

a = 0.0

Output

0

Example

 Live Demo

#include <cmath>
#include <iostream>
using namespace std;
int main(){
   double ans = 20.34;
   double temp;
   temp = log1p(ans);
   cout << "value of log1p(" << ans << ") is: "<<temp<< endl;
   ans = 0.0;
   temp = log1p(ans);
   cout << "value of log1p(" << ans << ") is: "<<temp<< endl;
   return 0;
}

Output

value of log1p(20.34) is: 3.06058
value of log1p(0) is: 0
raja
Updated on 17-Apr-2020 12:07:18

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