floor() function to get heighest number less than the input number

floor()

#include <stdio.h>
int main() {
printf("Number = %.4f", floor(14.23)); // 14.0000
printf("\nNumber = %.4f", floor(14.831)); // 14.0000
printf("\nNumber = %.4f", floor(-17.831)); // -18.0000
printf("\nNumber = %.4f", floor(-17.23)); // -18.0000
return 0;
}

We will get highest integer less than the input data by using floor() function. Output is the nearest integer ( on lower side ) of the number.

#include <stdio.h>
#include <math.h>

int main(void){
float num; // num is declared as float variable
num=17.873;     // data is stored
printf("num = %.4f", floor(num)); // final output
return 0;
}

The above code will give this output.

num = 17.0000

Example with negative value

#include 
#include 
int main(void){
float num; // num is declared as float variable
num=-17.873;     // data is stored
printf("num = %.4f", floor(num)); // final output
return 0;
}

Output is here

num = -18.0000

Math functions in C ceil() C- Tutorials

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floor()

Example with negative value

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