C log() Function
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C log() Function
The log()
function returns the natural logarithm (base E) of the given number.
This function is defined in <math.h> header file.
Example
C Compiler
#include <stdio.h>
#include <math.h>
int main()
{
printf("%lf", log(2));
return 0;
}
Output
0.693147
Syntax
double log(double x)
Parameter Values
Value | Type | Explanation |
---|---|---|
x | Required | Specifies a number. |
Return Value
Value | Explanation |
---|---|
Number | Returns the natural logarithm of the given number. |
-Infinity | If the given number is 0. |
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