what's is going wrong with this loop condition? [duplicate]

Question

Look at the output of this link(scroll down to see the output) to find out what I'm trying to accomplish

The problem is with the for loop on line number 9-11

for(i=0; i<=0.9; i+=0.1){
  printf("%6.1f ",i);
}

I expected this to print values from 0.0 until 0.9 but it stops after printing 0.8, any idea why ??

Answer 1

Using float here is source of problem. Instead, do it with an int:

int i;
for(i = 0; i <= 10; i++)
   printf("%6.1f ", (float)(i / 10.0));

Output:

0.0    0.1    0.2    0.3    0.4    0.5    0.6    0.7    0.8    0.9    1.0