Apr 21, 2015 · Explore related questions arithmetic factorial See similar questions with these tags.

Arithmetic could roughly be described as working with the numbers we know within a particular system of numbers, and is often related in some way to working with things called integers …

I'm looking for clear mathematical rules on rounding a number to n n decimal places. Everything seems perfectly clear for positive numbers. Here is for example what I found on …

Nov 26, 2014 · Geometric and arithmetic are two names that are given to different sequences that follow a rather strict pattern for how one term follows from the one before. An arithmetic …

What do you mean by “a more mathematical approach (rather than using a defined floor/ceil function)”? I don't see how having predefined modulo is more mathematical than having …

In the context of cryptography, I need to find the private key of a message and I need to use modular arithmetic. I understand how modular arithmetic using a clock with whole numbers. …

Oct 16, 2014 · I know this sounds a bit stupid but this question always confounds me. Say that you are given a range of numbers like $20$-$300$. And it asks you to find how many multiples …

Feb 19, 2014 · I have attached an image showing a Modulo 2 binary division. I can roughly understand the working below which is using XOR calculation but I am not sure how the …

I'm trying to figure out how to solve these types of repeating number sequence problems. Here is one I made up: Consider the following repeating number sequence: {4, 8, 15, 16, 23, 42, 4, 8, …

By no-changer I refer, of course, to the unit element. That this can be added/multiplied to anything without resulting in a change should be accepted. I am unsure wether this approach helps …