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C library function - log10()
Description
The C library function double log10(double x) returns the common logarithm (base-10 logarithm) of x.
Declaration
Following is the declaration for log10() function.
double log10(double x)
Parameters
x − This is the floating point value.
Return Value
This function returns the common logarithm of x, for values of x greater than zero.
Example
The following example shows the usage of log10() function.
#include <stdio.h> #include <math.h> int main () { double x, ret; x = 10000; /* finding value of log1010000 */ ret = log10(x); printf("log10(%lf) = %lf\n", x, ret); return(0); }
Let us compile and run the above program that will produce the following result −
log10(10000.000000) = 4.000000
math_h.htm
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