Problems with int and double variables

[ca2004]

Hello everyone,

I am having a problem when I define a variable as a result of the sum and division of other ones. I have:

double Emin=0.01;
double Emax=400.;
double Delta=0.05;

Now, if I define the variable bin as being:

bin=(Emax-Emin)/Delta;

if bin is an int variable the result is 7997 but if I define bin as a double the result is 7998. I don't know where is the problem or how fix it?

Any idea,

Thanks in advance,

Manuel

[LB]

The problem is that it is not 7998, but actually 7997.9999999999999999..., so it rounds down for integers and rounds up for doubles due to limited precision.