The complement of an evolving Menger sponge is all of the material that has been removed so far.... read more >>

On a recent visit to Ann Arbor, I met ten-year old Eden Rajapakse. Here is her sketch of the L-shaped membrane. Download Live... read more >>

The Menger sponge is a popular fractal that generalizes Cantor sets and Sierpinski triangles. Its fractal dimension is between two and three.... read more >>

Matrices in action.... read more >>

See Cube and Teapot.... read more >>

Use a cube instead of the Utah Teapot in my previous post. I was pleasantly suprised by the final screen shot.... read more >>

What do Mount St. Helens and the rank of a matrix have in common? The answer is the MATLAB function peaks. Let me explain. Please bear with me -- it's a long story.... read more >>

I want to share some colorful images featuring the seven colors in the MATLAB axes color order.... read more >>

Lots of tiny bubbles.... read more >>

Tomorrow, February 29, 2020 would be Gene Golub's 22nd birthday.... read more >>