Krystian Karczyński- 16 July 2024
A Few Things You Should Have Learned Well in Middle School, But No One Told You – Part 2: Quantifiers
Quantifiers - but they weren't really there... Alright, but who needs this? In most mathematical definitions and theorems,...
- Krystian Karczyński
- 15 July 2024
A Few Things You Should Learn Well in High School But No One Told You – Part 1 Absolute Values
If you’ve been studying mathematics at university for a while now, you’ve probably noticed that most of the...
- Krystian Karczyński
- 9 July 2024
High school graduates ask, eTrapez answers. Derivation of the height formula in a right-angled triangle.
This post is dedicated to a piece of a high school exam question sent to me by a...
- Krystian Karczyński
- 5 July 2024
General Instructions for Entering Mathematical Formulas
When it comes to using many mathematical tools (such as online calculators), we face a not-so-small problem, which...
- Krystian Karczyński
- 3 July 2024
Canonical Form of a Quadratic Function in Rational Integrals
I get a lot of questions about the formula for the canonical form of a quadratic function introduced...