Calimath
We present motivations and solutions to olympiad problems in algebra, combinatorics, geometry and number theory.For every video, we publish an additional pdf document with the explanation on our website and give references for all statements we used in our proof. You can find all the answers and our wiki on our website calimath.org.
So we want to give everyone the chance to have a close look at olympiad maths.
- 5:23
- 4 ай бұрын
These numbers rarely divide each other
- 15:19
- 4 ай бұрын
INTERNATIONAL MATH OLYMPIAD 2023 | Problem 5
- 8:49
- 4 ай бұрын
Peculiar numbers in the European Girls Math Olympiad
- 7:29
- 5 ай бұрын
Can you find subsets with the best properties?
- 7:49
- 5 ай бұрын
An interesting property of the divisors of n!
- 7:38
- 5 ай бұрын
How to deal with infinitely large sets
- 9:26
- 6 ай бұрын
A functional equation for number theorists
- 7:10
- 6 ай бұрын
Counting the number of subsets with a prescribed sum
- 5:57
- 6 ай бұрын
One of the most important properties about excircles
- 3:31
- 6 ай бұрын
An important combinatorics exercise
- 5:40
- 7 ай бұрын
Discovering a beautiful property of this sequence
- 7:34
- 7 ай бұрын
A classic functional equation solution using injectivity
- 6:27
- 8 ай бұрын
Bounding the size of a set with clever inequalities
- 10:13
- 8 ай бұрын
Finding the most precise rounding of real numbers
- 10:48
- 8 ай бұрын
An astonishing way to prove a functional equation
- 4:34
- 9 ай бұрын
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