Aspects


vs


Home Page
About Us
Feedback

Modulo

The modulo (sometimes called modulus) operation finds the remainder of division of one number by another

Subtraction

Subtraction is a mathematical operation that represents the removal of an object from a collection.



Others

Example

The conditional test and subtraction is typically less expensive than a modulo especially if the sum does not frequently exceed mod

from question  

Modulus optimization in a program

As you can see modulo is about an order of magnitude slower than subtraction

from question  

Why minus is slower than mod?

The reason is that the modulo is slower than subtraction

from question  

Numpy: Check if float array contains whole numbers

As i said this may increase the speed especially in an environment where modulo is more expensive than simple subtraction but you would want to actually benchmark it to be certain

from question  

Method to find a factor of a number

With regard to implementation it also takes advantage of a bit of a non-obvious property of r precedence rules actually this is true of other languages as well such as c c++ and java namely that unary negative is higher than modulo which is higher than binary subtraction thus the calculation for is equivalent to

from question  

Condtionally create new columns based on specific numeric values (keys) from existing column

That is essentially the one case in which repeated subtraction 0 or 1 times a special case of repeated subtraction can be and commonly is but not necessarily faster than division-based modulo

from question  

Performance of modulus operator in C

Back to Home
Data comes from Stack Exchange with CC-BY-SA-4.0