Integral of fractional part function,
check out integral of floor(x), https://youtu.be/5gtf9OuHa9Y

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Check out a recursive way for subfactorial here: https://youtu.be/dH7kt-xAlRA

Check out Best Friend 1/(1-x), https://youtu.be/Ux7vl6zXxj0

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I forgot one term in the nth term of the telescoping series, please see correction here: https://youtu.be/CLthG-tZkpU

improper integral of 1/(x^2-1) vs. infinite telescoping series of 1/(n^2-1),

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real^real^real^... = imaginary?

Wow, by pure coincident, Mathedidasko also did a video on this. Check it out: https://youtu.be/WvGRbONhDbY

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Lucky fractions here 2013 version: https://youtu.be/_Pon81fxK-E
#lucky #triggy #arctan

Simplify arctan expression, lucky trig expression,
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We now want to move on from two dimensions to three dimensions, and therefore we need to deal with surfaces in 3D. In this video, I illustrate how to paramet...

This is good practice for math Olympiad type problems. I thank Mirza for suggesting the problem, and since I couldn't figure it out, I also thank Mirza for sending the solution. Can you figure it out?

Sources
https://www.facebook.com/qedmathblog/posts/1968955259865026…

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Here we have a fun algebra problem, solving x^x=y^y. This problem is very similar…

PENTACLE: 108 Degrees Every Cell in our bodies is a Platonic Solid crystal form. Every Protein in our bodies is Pent shaped, and therefore based on Phi proportions. In fact, the more we zoom in and construct the Pentacle within the Pentacle, a process that…

Just a little bonus bit with Neil Sloane cut from the main video at: https://youtu.be/OeGSQggDkxI Neil Sloane is the founder of the Online Encyclopedia of In...

See best friend, infinite geometric series: https://youtu.be/Ux7vl6zXxj0 #TheMom #BestFriend #GeometricSum Power Series of 1/(1-x) ⭐️Please subscribe for mor...