The TI-89 Already does unit conversions:
Access the units menu with 2nd+3 and the ► symbol with 2nd+modeCode:1_mL►_l
I believe the 89 will solve DEs with the command "deSolve("
Just a quick question, I was wondering if there was a page with TI-89 programs and resources. I am currently taking a chemistry class and would love a program that would convert from the English to the metric system.
oh and i was wondering is it possible to solve differential equations using the TI-89? I have this program on my computer called maxima that does a fair and descent job, but to do it on the ti would be kinda cool.