15:34
what fractions dream of

7.2K views • 7 hours ago
21:51
surprising patterns in the signs of derivatives

8K views • 2 days ago
10:27
"tweaking" the Fermat last theorem equation

9K views • 4 days ago
17:26
a subfactorial limit

10K views • 6 days ago
15:50
derivatives "defined" without limits?!?

16K views • 8 days ago
26:37
the complex derivative is strange...

43K views • 10 days ago
17:00
this defines my favorite function

23K views • 12 days ago
11:20
An integral that is out of this world!!

9.3K views • 2 weeks ago
13:45
a very nice Pythagorean triangle puzzle

24K views • 2 weeks ago
16:20
Descartes' method of tangents

14K views • 2 weeks ago
6:33
My integral for the Heidelberg Integration Bee

12K views • 2 weeks ago
11:48
a "primorial" limit

11K views • 3 weeks ago
12:40
a very nice approach to this limit.

17K views • 3 weeks ago
16:26
a nice expected value problem

15K views • 3 weeks ago
10:14
two nice Canadian math problems

6.8K views • 4 weeks ago
9:19
a "changing" version of the Pythagorean theorem

15K views • 1 month ago
23:11
the Holy Trinity of curves

12K views • 1 month ago
18:45
Two from the Duke Math Meet

7.5K views • 1 month ago
14:01
a wonderfully natural doubly infinite product

11K views • 1 month ago
9:32
a math problem from the most famous computer programming book??

20K views • 1 month ago
12:02
calculus in reverse...

13K views • 1 month ago
12:16
how are these two integrals related??

9.2K views • 1 month ago
13:57
a very nice functional/differential equation

16K views • 1 month ago
38:46
math is nothing

25K views • 1 month ago
19:38
a prime example of an infinite matrix product

13K views • 1 month ago
12:33
what a nice Diophantine equation.

9.8K views • 1 month ago
15:56
probability of digits in a square root

14K views • 1 month ago
12:11
a new family of irrational numbers?

15K views • 1 month ago
10:36
what are special numbers??

7.2K views • 1 month ago
19:32
Some geometry behind the Basel problem

24K views • 1 month ago
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