Intereting Posts

Rearranging people so that no one is in the same spot
Book Reference for Calculus and Linear Algebra :: Engineer
Prove that for $n \ge 3$, for any integer $w$, $\exists x$ such that $w < x < w + p_n\#$ and lpf$(x) \ge p_{n+3}$
What makes Probability so difficult to get it right in the first place?
Topology and Arithmetic Progressions
Infinite Product is converges
Does there exist a function that is continuous at every rational point and discontinuous at every irrational point? And vice versa?
How to Prove that if f(z) is entire, and f(z+i) = f(z), f(z+1) = f(z), then f(z) is constant?
The structure of $(\mathbb Z/525\mathbb Z)^\times$
Topological proof on discrete topology where $X$ is infinite
It seems like a nim variant
Most useful heuristic?
Who invented or used very first the double lined symbols $\mathbb{R},\mathbb{Q},\mathbb{N}$ etc
Examples of comma categories
Theorems' names that don't credit the right people

How does one calculate the value within range -1.0 – 1.0 to be a number within the range of e.g. 0 – 200, or 0 – 100 etc. ?

- Need help with linear transformations (with projection and reflection)?
- extracting rotation, scale values from 2d transformation matrix
- Causal Inverse Z-Transform of Fibonacci
- Elliptic Coordinates - Inverting the transformation
- Is it true that any matrix can be decomposed into product of rotation,reflection,shear,scaling and projection matrices?
- Null Space of Transformation
- Any linear fractional transformation transforming the real axis to itself can be written in terms of reals?
- Image and kernel of a matrix transformation
- Getting a transformation matrix from a normal vector
- “Well defined” function - What does it mean?

If you have numbers $x$ in the range $[a,b]$ and you want to transform them to numbers $y$ in the range $[c,d]$ you need to do this:

$$y=(x-a)\frac{d-c}{b-a}+c$$

- How to show $\sum_{k=n}^\infty{\frac{1}{k!}} \leq \frac{2}{n!}$
- Finding $P$ such that $P^TAP$ is a diagonal matrix
- Topological manifolds (dimension)
- What is the difference between linear and affine function
- Crafty solutions to the following limit
- What algebraic topology book to read after Hatcher's?
- Understanding Reed-Solomon as it applies to Shamir secret sharing
- Taylor series convergence for $e^{-1/x^2}$
- Is this hierarchy of manifolds correct?
- Quotient objects, their universal property and the isomorphism theorems
- Prove that $n^2+n+41$ is prime for $n<40$
- Evaluating this integral : $ \int \frac {1-7\cos^2x} {\sin^7x \cos^2x} dx $
- Showing that Q is not complete with respect to the p-adic absolute value
- Determining the parameters for a spiral tangent to an arc and intersecting a specified point in 2D.
- When does every group with order divisible by $n$ have a subgroup of order $n$?