The commutative law of multiplication states that: If '$a$' and '$b$' are any whole numbers, then '$a · b = b · a$'. I'...

I am using an FFT to multiply polynomials. Because I want the program to be as fast as possible I am leaving away the zero padding. For example, if we wan...

It's my first post in math.stackexchange.com. I got a necessity to find out the clockwise difference between two numbers on a wall clock. For example...

The definition of the exponential with integer exponents is straightforward to define: $x^n=\underbrace{x\cdot\ldots\cdot x}_{n-\text{times}}$. These days...

Consider the following characterization of the Bayes' theorem: Bayes' Theorem Given some observed data $x$, the posterior probability that the p...

Can someone help with rearranging the following formula to find n with explanation? $$PMT = \frac{PV}{\frac{1}{r} \cdot(1- \frac{1}{(1+r)^{n}})}$$

Is it possible to build triangle with all the same sides but angles that are not congruent?

I have a set $A:=\{1,2,3,4,5,6,7\}$. How many ways I have to partition $A$ in $5$ non-empty subsets? Which are these ways?

$$\sqrt[4]{161-72 \sqrt{5}}$$ I tried to solve this as follows: the resultant will be in the form of $a+b\sqrt{5}$ since 5 is a prime and has no other fac...

The symbol kind of looks like this: ε, but it's more like a sideways u with a line through the middle.