Over the years, I’ve been on a silly quest to do 10PRINT on as many things as I can. They end up on X, here, or sometimes both. I hadn’t considered it before because I just figured I couldn’t print the "/" and "\" characters on the HP-42s. I was wrong. It’s pretty easy. After a few minutes in the manual, I figured it out. 00 { 45-Byte Prgm } 01▸LBL "TEN" 02 RAN 03 RAN 04 X>Y?

The “famous” 10PRINT program on vintage computers was a delight for many in the 70s and 80s. It’s fun to port to other platforms and machines. I’m always looking for calculators that can do it. It requires both a slash - ASCII character 47, and a backslash - ASCII character 92. Most calculators can print the forward slash, but the backslash is only sometimes implemented. No one is surprised; calculators have limited space, and printing random patterns isn’t a primary function for standard use cases.