I was experimenting with some arithmetic in Bloodshed Dev C++, and I found that:

9/5 = 1, and
(9/5) = 1

This makes sense to me because you are dividing two integer data-types, which will produce a truncated integer as opposed to the "correct" answer of 1.8. However, I became confused when I got the following outputs:

100 * 9/5 = 180, and
100 * (9/5) = 100.

The operation producing "180" was the answer I was looking for, but my code normally follows the latter's format. I'm wondering as to why the brackets make a difference here.

100 * 9 / 5 is evaluated in sequence.
100 * 9 = 900 (stored in a temporary value)
900 / 5 = 180

The other one:
(9/5) = 1 (stored in a temporary integer value)
100 * 1 = 100

jlinkels

3 members found this post helpful.

Thanks for the helpful reply!