Question

How to use exp() function to get base-e exponential, e (2.7182818) raised to the power of N in C++

Answer 1

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
	cout << "exp(-1) = " << exp(-1) << endl;
	cout << "exp(1) = " << exp(1) << endl;
	cout << "exp(0) = " << exp(0) << endl;
	cout << "exp(-0) = " << exp(-0) << endl;
	cout << "exp(-INFINITY) = " << exp(-INFINITY) << endl;
	cout << "exp(100) = " << exp(100) << endl;
	cout << "exp(710) = " << exp(710) << endl;

	return 0;
}

// inf - Numerical result out of range

/*
run:

exp(-1) = 0.367879
exp(1) = 2.71828
exp(0) = 1
exp(-0) = 1
exp(-INFINITY) = 0
exp(100) = 2.68812e+43
exp(710) = inf

*/

 

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