Loopback: > I do want to ask though what an alternative would be in this case, to > compare the two different values. You mentioned something about > "epsilons" but I have no experience within this field. I would really > appreciate an example or something similar so I could understand your > statement.
If you want to use floating point values in your programs then you probably need to know something about floating point representation. This is a good starting point: http://en.wikipedia.org/wiki/Floating_point For your problem there is the feqrel function: http://www.digitalmars.com/d/2.0/phobos/std_math.html#feqrel > From what I can see these are two identical values, I would be more than > glad if someone could explain just what is the difference between these > two "non-equal" values and how make them "equal". Perhaps I should use > ints and long instead since they don't seem to suffer from this > "problem"? Generally in a program you use floating point values only if you can't use integral values (and you don't want to go toward fixed point values, rationals, etc). Bye, bearophile
