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log() function in C++
The C/C++ library function double log(double x) returns the natural logarithm (basee logarithm) of x. Following is the declaration for log() function.
double log(double x)
The parameter is a floating point value. And this function returns natural logarithm of x.
Example
#include <iostream>
#include <cmath>
using namespace std;
int main () {
double x, ret;
x = 2.7;
/* finding log(2.7) */
ret = log(x);
cout << "log("<< x <<") = " << ret;
return(0);
}Output
log(2.7) = 0.993252
Published on 02-Apr-2019 10:24:26
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