Hi pple... I was reading the notes on Topic 3 and i came across tis slide where i'm baffled by the ans stated on it. Its slide 36 of Topic 3. The 2nd eg. stated tat
" 3 / 2 + 2.5 = 3.5". Shouldn't the ans be 4? Similarly on slide 37, the 1st eg. stated tat " 2 + 3 / 2 = 3" and the 8th eg. stated tat " 15.0 - 5 / 2 = 13". Shouldn't the ans be 3.5 and 12.5 respectively? On the contrary, for eg. 3 & 6 of slide 37, the ans are correct. I noticed tat sometimes when an odd number divides by 2, the result will hv a .5 and sometimes, there isn't a .5 . So when is it that i need to include the .5 and when don't i need to include it? Btw, how do we use a % (modulus)? The last eg. on slide 37 states tat " 1 + 2 % 3 + 1 = 4.0". Haha.. I dun understand it.

Can someone ans my qns? THANKS

Sorry for troubling u pple jus becos i wasn't paying attention in class...

For modulus you can refer to http://en.wikipedia.org/wiki/Modulo_operation and http://www.cprogramming.com/tutorial/modulus.html

Mm.. ok i analysed it abit. Theres a rule stated on slide 36 * Result of an operation involving an integer and a floating- point number is = a floating- point number.* Meaning for Slide 36 eg.2, "3 / 2 + 2.5 = 3.5" is equals "1 + 2.5 = 3.5" theres no floating pt number therefore 3 / 2 is = 1 ( .5 is omited) as for eg. 6 of slide 37, " 0.5 + 3.0 / 2" is equals " 0.5 + 1.5 = 2" , becos the 3.0 is a floating-pt number, therefore for the ans there is a .5 .

And for the last eg. of slide 37, "2 % 3 = 2 ( remainder is 2) therefore, 1 + 2 + 1 = 4.0".

Am i correct to say tat?

If I'm correct, then I solved my own qns.

Thanks for reading my post anyway...

yeah.. i've just figured it out. Yeap.. the result of an operation involving two integers is an integer.

yeap.. they are all correct!!! congratz..

you're welcome.. and thanks for posting..

well, thanks for sharing, now we know when we want to result to be more accurate, instead of set the number become Int, should set it as Float, so that we can include .5 or other including point number.

just heard the lecture, i notice that the last eg, last term is "1." so it's actually "1.0", hence the answer become 4.0 instead of 4.