floor : floor « math.h « C Tutorial

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C Tutorial » math.h » floor   19. 21. 1. floor Item Value Header file math.h Declaration float floorf(float num); double floor(double num); long double floorl(long double num); Return returns the largest integer (represented as a floating-point value) not greater than num. Given 1.02, floor() would return 1.0. Given -1.02, floor() would return -2.0. #include <math.h>   #include <stdio.h>   int main(void)   {     printf("%f", floor(10.9));     } 10.000000 19. 21. floor 19. 21. 1.  floor

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