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Krystian Karczyński

A Few Things You Should Learn Well in High School, But No One Told You – Part 3: Quadratic Function

This post is already the third in a row where I want to draw your attention to things that are worth reviewing at the very beginning of your mathematics studies at university. A quick review of them will make your life in university much easier.

Today it’s the turn of the quadratic function.

Quadratic function? The topic of the quadratic function is, of course, very broad, and I don’t mean at all that you should take a high school textbook and go through the entire chapter from cover to cover. Let’s just focus on a few important details, nuances, and traps.

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22 July 2024 No Comments
High school
Krystian Karczyński

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 material covered in high school doesn’t directly help you at university. If you’re just starting out – take note of this.

Let’s get to work. In this and the next posts, I’ll show you a few details, understanding which will greatly ease your university studies. We start with… The geometric interpretation of absolute value (as distance).

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15 July 2024 No Comments
Calculators
Krystian Karczyński

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 is how to write something like this, for example {e^x}/{e^x^2+1}

… “so that the computer understands”. In other words, learning to type mathematical formulas and equations using a computer keyboard. This is neither easy nor pleasant. Don’t expect quick successes, but rather prepare for a hefty dose of frustration, especially when starting with more complex expressions.

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5 July 2024 No Comments

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