Definition of vertex and edge.
So I'm trying to name things in a graphics library. Reading Wiki it says that a vertex is created by the meeting point of lines, line segments and ra...
Apr 16, 2026 1 VIEWS
Topic: General
5104 Articles 
How do I show that two sets are equal.
This is an ever so slightly modified version of a question from my book. My teacher went over this with me, but I would like an explanation that I can kee...
Apr 16, 2026 1 VIEWS
How to calculate large exponents by hand?
How to calculate large exponents by hand like they did in ancient times? Is it something to do with Prosthaphaeresis? for example calculate $2^{15}$.
Apr 16, 2026 1 VIEWS
Integral of $\sin^5(x)\cos(x)$
I'm trying to solve the following integral: $$\int\sin^5(x)\cos(x)$$ I assumed I would do u-substitution where: $$u = \sin(x)$$ $$du = \cos(x) dx$$ W...
Apr 16, 2026 1 VIEWS
7.7 standard deviations away from the mean?
I'm confused. I have a problem where I have to find the probability that x is below the z value 7.7. My z table only goes to z values of 3.4. How do ...
Apr 16, 2026 1 VIEWS
What is the difference between the terms 'equation' and 'algorithm'?
What is the difference between the terms 'equation' and 'algorithm'? Can these terms be used interchangeably?
Apr 16, 2026 1 VIEWS
User ducksattack - Mathematics Stack Exchange
Q&A for people studying math at any level and professionals in related fields
Apr 16, 2026 1 VIEWS
How to find the center of a log spiral?
Given just a few points on a log spiral, how to find the center? Considering that the circle is a degenerate case of the log spiral, is there a way to gen...
Apr 16, 2026 1 VIEWS
From complex rotation matrix to real matrix
Let's consider $R_{n}$ to be an $n \times n$ real rotation matrix. $R_{n}$ can be diagonalized with a unitary matrix $U_{n}$ to $D_{n}$, which is com...
Apr 16, 2026 1 VIEWS
Non-integer bases and irrationality
I read somewhere: When it comes to properties like prime, irrational, rational, divisible by 2, etc., nothing changes when you change base. But I'm n...
Apr 16, 2026 1 VIEWS
Derivation of the "Combined Work Formula"
Before I get to my question, some background: Person $A$ can paint a fence at the rate $9 \frac{hour}{fence}$ (or equivalently $\frac{1}{9} \frac{fence}{h...
Apr 16, 2026 1 VIEWS
Calculate Legendre symbol
When i calculate the legendre symbol for (101/1739), i end up with (2/27)*(5/27) in the middle of the calculation. I understand how to calculate (5/27), b...
Apr 16, 2026 1 VIEWS