So you're an engineer too? (I was one yr behind you.) I never programmed mine with formulas, but a lot of guys did. Actually I had the 48SX, my bro gave me his 48G when he dropped out of engineering.

I remember those TI-81s too...Good on you.

Kerry


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91 Isuzu Impulse XS Kammback, Handling By Lotus
Victoria, BC, Canada