general
What is degree of freedom in statistics?
In statistics, degree of freedom is widely used in regression analysis, ANOVA and so on. But, what is degree of freedom ? Wikipedia said that The number o...
Apr 20, 2026
Archive: General
general
how to find the length of a side of hexadecagon in relation to the radius or diameter.
is there an equation I can use to find the length of a side (L) of a regular hexadecagon (16 sided polygon) based on its radius (by which I mean the lengt...
Apr 20, 2026
general
Echelon Form and Reduced Row Echelon Form differences and when to use
I have a quick question regarding the difference between echelon form and reduced row echelon form (rref). According to my googling these seem to be the s...
Apr 20, 2026
general
Path component is path connected question.
Let $X$ be a topological space Prove that each path component of $X$ is path connected. This is a homework problem so what I want is a explanation of what...
Apr 20, 2026
general
Distance between two points on a sphere.
Say there is a sphere on which there is an ant and the ant wants to go to another point. The ant can't definitely travel through the sphere. So it ha...
Apr 20, 2026
general
Calculating the probability that at least one of a series of events will happen
I want to calculate the probability of at least one event happening in a series of multiple events. For example, let's say the probability of each ev...
Apr 20, 2026
general
Finding solutions to a system of differential equations with complex eigenvalues
I've been working on this problem for the better part of a day and could use some help. Express the general solution of the given system of equations...
Apr 20, 2026
general
Calculating kinetic energy
I have the question: "Calculate the kinetic energy, $E_k$, when a car of mass $1500$ kg travels at a speed of $108$ km/h." I converted the $108$ km/h to $...
Apr 20, 2026
![Find the constant term in the Fourier series for $f$? [closed]](https://news.conceivablytech.com/uploads/find-the-constant-term-in-the-fourier-series-for-f-closed_720.jpg)
general
Find the constant term in the Fourier series for $f$? [closed]
Let $f(x)$ be the function on [−3, 3] which is graphed below, Find the constant term in the Fourier series for $f$? $$\frac{a_{0}}{2}=\frac{1}{2L}\int^{L}...
Apr 20, 2026
general
Convergent subsequences
I'm studying for a real analysis exam tomorrow and I am curious about something: Two true false questions: a) Every sequence in the interval (0,1) ha...
Apr 20, 2026
