IF - Same comparison, different results?

I have this If statement

if abs(DespSubSis(1) - Carga(1)) > abs(PTIE)
    k = k + 1;
    flag = 1;
elseif abs(DespSubSis(2) - Carga(2)) > abs(PTIE)
    k = k + 1;
    flag = 1;
end

being

DespSubSis =  700.0000  700.0000
Carga =   850   550
PTIE = 150

The first If returns 0, but the second 1.

Both should returns 0 since It's false 150 > 150.

What's wrong? :(

[madhan ravi]

provide datas

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F

Your values are not exact integers. You should display

DespSubSis - fix(DespSubSis)
Carga - fix(Carga)

You will find something non-zero.

[TULIO FRANCISCO LOURENCO]

That was It