Inverting Matrix by Row Transformation for HP 35s/33s? - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: Inverting Matrix by Row Transformation for HP 35s/33s? (/thread-120214.html) |
Inverting Matrix by Row Transformation for HP 35s/33s? - Howard Boardman - 08-03-2007 Since these calculators can't handle matrices, has there been any programs written to speed up the process? Perhaps a program that will transform a row when entered intered into the calculator? Thanks
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - bill platt - 08-03-2007 If you can do it by hand, you can write a program to do it. Simple as tthat--make the computer remember the steps, that's all.
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - Howard Boardman - 08-03-2007 Thanks for the "obvious" answer. Just wondered if it had been done before. Perhaps I should have asked if there is other known software archives besides the big ones like on this website.
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - bill platt - 08-03-2007 Did you find any for the 33s? It would work on this calculator too.
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - Gene Wright - 08-03-2007 Anything for the 33s would be quite limited given the memory constraints of that model. I think it is only a matter of time until someone completes a matrix determinant and inverse routine using the indirect registers on the 35s.
As previously mentioned, Datafile has an article with many matrix utilties already published. Just need a shell program written around them to call the routines and do a bit of other math.
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - Howard Boardman - 08-04-2007 Wouldnt be too hard to write a program that would handle a 2x2 or 3x3... my programing knowledge is not good enough yet to handle something bigger. I think youd be limited anyway because of the storage capacity of variables.
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - Gene Wright - 08-04-2007 Storage capacity shouldn't be a problem on the 35s. With 801 indirect registers, you can store quite a bit of information. I remember the old TI-59 LED calculator could do an 9x9 determinant and the HP41c could do a 14x14 (if I remember correctly).
I think the 35s could do those of that size once the program is done. Now WHY you'd want to do one that big is another question. :-0
Re: Inverting Matrix by Row Transformation for HP 35s/33s? - Ed Look - 08-04-2007 (Super)String Theory.
Why anyone would want to stick with that is another question. :-0
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