Exploring Matrices Exercises

Try your hand at a few exercises involving Exploring Matrices.... read more >>

Three Wordle Assistants3

When I tackle a Wordle puzzle, I like to make all the key decisions myself. My three assistants set up puzzles and suggest words when I ask for help, but I guide the actual solution. My assistants also make it possible for me to play Wordle anywhere, anytime, even when my laptop is in airplane mode. I don't need the New York Times or access to the Web.... read more >>

Wordle Sneak Previews3

Wordle Sneak PreviewsThe Web sites that are claiming to have advance knowledge of the daily Wordle answer have become unreliable, so I am closing my sneak preview business. Get the MATLAB... read more >>

WordBot and Words, My Wordle Assistants1

I am late joining the Wordle craze. Over a year ago, MATLAB programs for solving Wordle puzzles were described by Adam Filion as a guest blogger on Loren's blog and by Matt Tearle with a YouTube video. But my programs for Wordle Assistants are different. WordBot doesn't try to solve any puzzles and Words just supplies lists of possible words. I enjoy providing the solution logic myself.... read more >>

Color Cube Meets Rubik’s Cube

I have made a half dozen blog posts about Rubik's Cube so far this year. And, during the MATLAB Central Mini Hack in October, I resurrected an old code about the Color Cube. Now, a combination of the two, Rubik/Color Qube, creates an elegant tool for investigating Matrices in Action.... read more >>

Trio, A Wooden Puzzle from the Czech Republic2

"Clever Toys" is a puzzle company in the Czech Republic. Their Web site describes five different hand-made, wooden puzzles that are related mathematically to the Rubik's Cube.... read more >>

Rubik’s Cube Superflips and God’s Number

• How hard is it to solve a Rubik's Cube?
• When can you say that your Rubik's Cube is completely scrambled?
• Why might the answer depend on where you went to school?
• What interesting mathematical questions are involved?