This site presents some of the material I want to share with the rest of the world, well, sort of. I am a passionate programmer and love to use Tcl/Tk as my programming language whenever I can. So I want to give something back to the community that maintains this programming language for free.

I love the skills of bead calculation (using a japanese abacus) and mental calculation, i.e. arithmetics without electronic calculators.

Some day, I may find the time to present something here about my other interests, as for example Typography.

Anything else and random thoughts are placed in the rainbow