Because humans can't see in more than 3D, it is challenging to make sense of it for the first time. However, there is a simple yet beautiful pattern behind.
This is how the magic is done!
What is a cube in one dimension?
It is simply two vertices connected with a line of unit length.
To move beyond and construct a cube in two dimensions, also known as a square, we simply copy a one-dimensional cube and connect each original vertex with its copy.
(These new edges are colored blue.)
You can probably guess the pattern by now.
Copying a cube's graph and connecting each of its vertices with its corresponding copy brings it to the next dimension.
This is how it looks in 3D.
Repeating this process one more time, we obtain a tesseract, that is, a cube in four dimensions.
(I stretched the new edges a bit to make it easier to see the pattern.)
All 8 of its faces are 3D cubes.
I have always found this pattern quite beautiful.
Geometry intrigued me since I was a child, and when I discovered how to draw a tesseract, I was over the moon.
Small things such as this ignited my desire to be a mathematician, and I still enjoy playing around with fun math.
I regularly post deep dive threads about mathematics and machine learning, explaining (seemingly) complex concepts in a simple way.
If you also love to look beyond the surface and understand how things work, consider giving me a follow!
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Differentiation reveals much more than the slope of the tangent plane.
We like to think about it that way, but from a different angle, differentiation is the same as an approximation with a linear function. This allows us to greatly generalize the concept.
Let's see why!
By definition, the derivative of a function at the point 𝑎 is defined by the limit of the difference quotient, representing the rate of change.
In geometric terms, the differential quotient represents the slope of the line between two points of the function's graph.
"1. No income tax for women with at least two children for life."
This is an election hack, meant to buy votes for the upcoming 2026 election. Fidesz (Hungary's ruling party) is significantly down in the polls after it was leaked that a convicted p*d*ph*le accessory was given a presidential pardon.
Hell, they even let a child p*rn*gr*phy wholesaler with 96000 images on his computer walk away with ~$1500 fine. (Check en.wikipedia.org/wiki/G%C3%A1bo… if you don't believe me.)
Thus, the government is scraping to buy back the trust of families.
Even if it wasn't an empty promise, waiving the income tax is unrealistic for budgetary reasons. Hungary's economy is in the toilet.
"3. Housing incentives for young couples.
Offers a low interest loan for couples raising or committing to having one child or more."
This loan is another propaganda trick. In practice, this loan resulted in the biggest housing crisis of the country's history, because all it did was raise the price of every real estate by the amount of the loan, making real estate ownership virtually impossible for the young generation.