Modulo: Difference between revisions
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Conceptually, modulo is the remainder after a division. | Conceptually, modulo is the remainder after a division. | ||
In programming languages, if it has an operation as a single character in the language, that's usually {{inlinecode||%}} | |||
In integer math, | |||
7 / 4 = 1 | |||
7 % 4 = 3 | |||
And a little more practically | |||
def is_even(n): | def is_even(n): | ||
return n%2 == 0 | return n%2 == 0 | ||
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if i%27==0: | if i%27==0: | ||
print "at job",i | print "at job",i | ||
Notes: | |||
* Not to be confused with ''modulus'', which [http://jeff560.tripod.com/m.html has a few other meanings in mathematics] though in programming context usually 'absolute value'. | |||
* The modulo operation can sometimes be optimized, e.g. modulo of powers of two (not unusual in programming) have a bitwise-AND equivalent. | |||
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Revision as of 14:01, 12 October 2023
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