quick C# operator question

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basically i have this sum

(11+22+33+44+55) % 26

what does the %26 mean?

i've tried 165 divided by 26 which gives me 6.3

percentage equals the same... can anyone help?

forgive me if this a stupidly idiotic question to ask

Posted 18-Jan-14 23:39pm

Member 10533516

Updated 18-Jan-14 23:41pm

v2

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2 solutions

Solution 1

http://msdn.microsoft.com/en-us/library/0w4e0fzs.aspx[^]

Posted 18-Jan-14 23:41pm

Kornfeld Eliyahu Peter

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OriginalGriff · Accepted Answer · 2014-01-18T23:44:00

Solution 2

Percent is the C# Modulus operator: MDSN[^] - it returns the remainder when the left side is divided by the right, and returns it as an integer.

So:

C#

12 % 10 == 2
12 %  8 == 4

And

C#

(11+22+33+44+55) % 26 == 165 % 26 == 9

[edit]Typo: transposed digits - OriginalGriff[/edit]

Posted 18-Jan-14 23:44pm

OriginalGriff

Updated 18-Jan-14 23:45pm

v2

Comments

Member 10506451 19-Jan-14 5:54am

hmmm so its not a simple division then.. when i tried to divide 165 by 26 on the calculator it gives me 6.34615385

OriginalGriff 19-Jan-14 6:09am

Correct!
165 / 26 == 6.34615385
Subtract the whole number:
0.34615385
Multiply by 26 again:
0.34615385 * 26 = 9
So
165 / 26 == 6 and 9/26ths as a fraction.
Or, if you divide 165 by 26, it goes 6 times, with a remainder of 9:
6 * 26 == 156
165 - 159 == 9
That's what a modulus operator does: returns the remainder of the division.
Its really handy if you want to convert an integer into it's separate digits: take the modulus by 10 ( which returns the lowest digit). Then integer divide the original number by 10. If it isn't zero, there are more digits, so do it again with the result of the division.

CPallini 19-Jan-14 8:02am

It is the reminder of the integer division.