# gcc a.c
#include <stdio.h>
#define ABS(A) ((A)>0?(A):(-(A)))
int main(void){
	float version = 2.26;
	float newversion = version + 0.01;
	printf("version=%f, newversion=%f\n", version, newversion);

	printf("2.26*100=%.8f\n", 2.26*100);
	float x = 226.0;
	if( ABS(x-226.0)>0.00000001 ){ printf("ajaja\n"); }
}