# Error in binary arithmetics

by megaflop
Tags: arithmetics, binary, error
 P: 10 Hello everyone ! I got a problem, I can't figure out why when I compute $A+B$ and $2\times (\frac{A}{2}+\frac{B}{2})$ the result is sometimes different. Can anyone explain why the results of the two operations are different ? Edit : A and B are coded in binary of course and we compute a binary addition.
 Sci Advisor P: 3,139 Are you using integer or floating point ? My guess is former , and one of the numerators is an odd number.
 P: 10 Integers I forgot to mention sorry.
P: 3,139

## Error in binary arithmetics

Well there ya go.

Got Basic?

FOR I = 1 , 10 , 1
PRINT I, INT( I/2)
NEXT I
END
P: 10
 Quote by jim hardy Well there ya go. Got Basic? FOR I = 1 , 10 , 1 PRINT I, INT( I/2) NEXT I END
I see thank you :) .