log10 in c

What is log10 in c programming?

log10 in c is a library function which is used to calculate common base10 logarithm value of a given number.

This function is defined in math.h header file.

Prototype

double log10(double m);

Parameters

log10 function takes double type value as input parameter.

Return value

log10 function returns base10 logarithm value of given number.


Example program for log10 in c

#include<stdio.h>
#include<math.h>
int main()
{
  double i,res;
  printf("\n\n\tEnter the double type number \n\t");
  scanf("%lf",&i);
  res=log10(i);
  printf("\n\tThe logarithm value is %lf \n",res);
  return 0;
}
Example for log10 in c programming
Example for log10 in c programming

While using gcc use below command to add math header.

gcc file_name.c -lm

Code explanation

log10 function is called by passing the value which is inputted from user. Result is being stored in res variable.

Then print the result on to the console.

log10() Man page


Difference between log10 and log in c

log10 function is used to calculate the common base10 logarithm value of a given number. log in c is a library function that is used to calculate the logarithm value of a given number.

Prototypes are as follows

double log10(double m);

double log(double m);
log10( )log( )
Used to calculate common base10 logarithm value of given number.Used to calculate logarithm value of a given number.
double log10(double m);double log(double m);

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What is log10 in c?

log10 in c is a library function that is used to calculate the common base10 logarithm value of a given number.