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Programming a Matrix(hp49G+) ? - Barry - 06-09-2004
Hi I would like to take a value from the stack place it into a matrix, and get an ouput value.
I have tried << -> x '[[cos(x),sin(x)][sin(x),cos(x)]]'>> Does anyone know how to do this? Thanks
Barry
Re: Programming a Matrix(hp49G+) ? - Vieira, Luiz C. (Brazil) - 06-09-2004
Hi, Barry; I remember that till the HP48, all arguments possible in an array are numbers, even complex (not sure if bunaries are allowed as well... I think not). I don't recall having algebraics as array "arguments". anyway, you can arrange your expressions in lists and disassemble/reassemble: turn lists into arrays. If I am not wrogn, the HP49G+ has some new features for this. Also, having the expressions organized in lists, like {{cos(x) sin(x)}{sin(x) cos(x)}}allows you to use a handy command: DOLISTS (also DOSUBS may help, depending on what you want). I guess SYS RPL guys may have other possibilities. I'm starting to read about SYS RPL, and there are many interesting things there... It's a new world. Hope you succeed. If not, post again. Cheers.
Luiz (Brazil)
Re: Programming a Matrix(hp49G+) ? - Vepa - 06-09-2004
<< -> x '[[cos(x),sin(x)][sin(x),cos(x)]]'>> Re: Programming a Matrix(hp49G+) ? - V-PN - 06-09-2004
You could also use a pure RPN program: |