Comments in green were written by me. Comments in blue were not written by me.
@Dan Whitman: Find the difference between the original number and the reverse of the original. Call this difference \(a\). Next add \(a\) to the reverse of \(a\)...
on /blog/37
@Matthew: Thank you for the prompt response! It makes sense now and perhaps I should have read a little closer!
Dan Whitman
on /blog/37


Show me a random blog post

Jul 2020

Happy ϕ+τ-5 Approximation Day!

May 2020

A surprising fact about quadrilaterals
Interesting tautologies

Mar 2020

Log-scaled axes

Feb 2020

PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2

Jan 2020

PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼
▼ show ▼


matrix of cofactors people maths puzzles gerry anderson logs cambridge tennis pac-man rhombicuboctahedron advent calendar binary bempp matrix of minors error bars wave scattering squares graphs menace weather station european cup reddit pi approximation day logic tmip accuracy hats misleading statistics chebyshev frobel exponential growth approximation countdown video games gaussian elimination christmas noughts and crosses golden ratio preconditioning national lottery boundary element methods polynomials simultaneous equations oeis pi cross stitch palindromes sound programming python propositional calculus interpolation final fantasy sobolev spaces radio 4 electromagnetic field flexagons books wool manchester science festival ucl rugby inline code royal baby data matrices machine learning games computational complexity dataset london underground triangles probability martin gardner php statistics realhats convergence london big internet math-off hexapawn folding paper chalkdust magazine estimation chess finite element method latex pizza cutting go inverse matrices reuleaux polygons map projections trigonometry geometry mathsjam speed bubble bobble light pythagoras signorini conditions ternary matt parker bodmas football quadrilaterals christmas card the aperiodical platonic solids a gamut of games raspberry pi world cup phd curvature braiding mathsteroids game of life matrix multiplication javascript captain scarlet golden spiral numerical analysis arithmetic stickers fractals hannah fry manchester twitter nine men's morris sport craft mathslogicbot dragon curves geogebra news graph theory plastic ratio harriss spiral royal institution talking maths in public folding tube maps dates weak imposition determinants coins draughts asteroids data visualisation sorting game show probability


Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2020