Everyone knows how to multiply column-wise, fewer people know about multiplication with lines, but there are other interesting methods too. Multiplication is a very simple operation, in fact, it’s essentially the same as addition....
Integrals are first studied in school. But no teacher explains why they are needed or how to use this knowledge in life. Few people can even explain in simple terms what an integral is,...
Limits are one of the most difficult concepts to understand in mathematics. It’s hard to explain simply what a limit is, so most often, no one tries. And moreover, few teachers can give an...
Zero is probably the most mysterious number and the most counterintuitive. After all, there is no real-life analog for it. Zero is the absence of something. But why is zero raised to the power...
Not everyone knows it, but surely everyone learns it in school. The multiplication table is a very useful thing even today in the era of artificial intelligence and calculators on phones. Who invented the...
Everyone has heard of the binary numbering system, and everyone knows that it is some kind of “computer language”. But why exactly is that? Why not use the familiar decimal system? What’s the point?...
Have you ever wondered why there are 60 seconds in a minute and 60 minutes in an hour? Why not 100? Why do we use the decimal system for counting, but time is measured...
No one will argue that the invention of the alphabet is a huge step for all of humanity. After all, unlike hieroglyphs and cuneiform, writing and reading with letters became much simpler. But where...
We are so used to letters and numbers that we cannot imagine how people counted without digits. But how did people count in the good old days when digits did not yet exist? Yes,...
No one knows how long ago people learned to count. But we almost certainly know how they did it in the past. At least from the moment ancient numbers began to be recorded. A...
Everyone has somehow gotten used to the fact that in mathematical equations and in everyday life, we call something unknown X. In mathematics, x is something unknown, and not only in mathematics but also...
Infinity is a complex concept to understand. In ordinary life, we do not encounter anything that has no beginning and end. It is all the more surprising that such an abstraction is encountered so...
