Adding pentagonal numbers in 3D (proof without words) Published 2023-01-31 Download video MP4 360p Recommendations 01:31 A Dramatic Finite Sum : Oblong Numbers II (visual proof without words) 09:56 A Visual Attempt at 1 + 2 + 3 + 4 + 5 + ... = -1/12 05:26 A Factorial Sum Produces the Factorial Number System (visual proof) 29:59 Tesla’s 3-6-9 and Vortex Math: Is this really the key to the universe? 08:03 Can you solve these number puzzles? 12:55 A Strange Map Projection (Euler Spiral) - Numberphile 11:45 Partitions - Numberphile 05:01 Arithmetic Mean-Geometric Mean Visual Proof Compilation 31:33 The Oldest Unsolved Problem in Math 32:32 Why don't they teach simple visual logarithms (and hyperbolic trig)? 03:35 Two Infinite Series Sums from Regular Polygons (visual proof) 17:59 How a Hobbyist Solved a 50-Year-Old Math Problem (Einstein Tile) 13:38 5040 and other Anti-Prime Numbers - Numberphile 13:08 Paradox of the Möbius Strip and Klein Bottle - A 4D Visualization 03:44 Trig Double Angle Formulas from Semicircle (visual proof) 02:54 Pentagonal Numbers: Representing Algebra Geometrically 03:43 Sum Geometric Series with Ratio 1/2 in Rectangles (visual proofs) Similar videos 02:09 Sums of Oblong Numbers I (visual proof without words) 02:25 Sums of Oblong Numbers III (visual proof without words) 02:01 Every Cube is an Arithmetic Sum (visual proof without words) 02:27 Visual Sum of Squares III (proof without words) 01:32 Squares as Consecutive Up/Down Sums of Integers (visual proof without words) 01:21 Galileo's Odd Ratios II (visual proof without words) 06:46 Beautiful Geometry behind Geometric Series (8 dissection visual proofs without words) #math #series 00:44 Simple Geometric Proof of Triangular Number Formula 00:13 Visual Proof for 1/3 + 1/9 + 1/27+ 1/81 + ... = 1/2 #eduwow #reels #shorts 12:09 The Thue-Morse Sequence (with visualizations) 01:42 Pentagonal Number Calculator 00:17 A Geometric Proof of the Square Pyramidal Number Formula 19:42 How Infinity Works (And How It Breaks Math) More results