Order of Precedence question
When i put this little equation through MinGW
total = 100-25*50;
The order of precedence states that it should do 25*50(1250) first and then -100
the result of that being 1150...
However... when i put this through MinGW it returns -1150 which implies it's doing the subtraction first and then multiplying it by 50 (on my calculator i managed to get the same result by doing that)
So, what's going on here? :S
Try this
total = 25 * 50 - 100;
Do you still dont get why the negative value is? then perhaps you should look into basics of maths from your school book.
ssharish
Life is like riding a bicycle. To keep your balance you must keep moving - Einstein
This is why the C gods gave us brackets. Try... total = (25 * 50) - 100; ... it will do the part in brackets first.
It is always better to be more specific... a lot fewer surprises that way.
That still wouldn't solve the problem.Originally Posted by CommonTater
ssharish
Life is like riding a bicycle. To keep your balance you must keep moving - Einstein
I know... look again, I fixed it.
total = 100 - 25 * 50
and the answer will be -1150. what's wrong with that?
Code:total = 100 - 25 * 50 total = 100 - 1250 total = -1150
Do not stare at my avatar.
> what's wrong with that?
Look back and read the OP question again. lol.
His question was why it is negative. And he expecting a positive number.
ssharish
Life is like riding a bicycle. To keep your balance you must keep moving - Einstein
ah...okay
dear OP,
if you want to get a positive result (instead of negative), then you should do this (just like what ssharish2005 did)
Code:int total = 25 * 50 - 100;
Do not stare at my avatar.
Ahhh... i see...
It takes 100 first and then subtracts it by the result of (25*50) resulting in -1150...
*facepalm* xD
I haven't been sleeping much so sorry for the dumb mistake... :P
But thanks for the help
Hmm....maybe you would find this helpful.
Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.
I already knew about the order itself " P E M D A S " my confusion stemmed from the positioning of the 100...
Since Multiplication comes before Subtraction in the Order of Precedence, i foolishly thought that it would disregard the 100, do
the multiplication and only THEN subtract 100 from the result of the multiplication, which would've resulted in a positive number,
but, of course, that's not how it works, it still reads 100 first and subtracts the result of the division from 100 resulting a negative number :P
