HP Forum Archive 20

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Matrix Library Message #1 Posted by John Abbott (S. Africa) on 19 Oct 2011, 4:23 a.m. Hi Marcus I have found an error (finger trouble probably) in the matrix library - namely in wp34s-1.dat. The first 'M-' label should read 'M-0'. The real 'M-' appears further down. For Pauli - in the 'M-y' routine you execute a [cmplx]DROP, which does not leave a descriptor on the stack. Should this not be just a DROP? Regards John BTW- Thanks for these routines. The LU routine (if included) would be great :) Edited: 19 Oct 2011, 4:25 a.m.

Re: Matrix Library Message #2 Posted by Paul Dale on 19 Oct 2011, 4:30 a.m., in response to message #1 by John Abbott (S. Africa) Quote: I have found an error (finger trouble probably) in the matrix library - namely in wp34s-1.dat. Won't be finger trouble -- these are generated by the assembler from the sources in the library. Still, the source only has one 'M-' label so something has gone awry. Quote: For Pauli - in the 'M-y' routine you execute a [cmplx]DROP, which does not leave a descriptor on the stack. Should this not be just a DROP? The matrix descriptor is saved in L. The value on the stack isn't the descriptor anymore -- it is a loop index for ISG that has finished. Thus, complex DROP is correct here. Quote: BTW- Thanks for these routines. The LU routine (if included) would be great :) The LU routine will be back if we can find enough space for the wrapper. We're working on it. - Pauli

Re: Matrix Library Message #3 Posted by John Abbott (S. Africa) on 19 Oct 2011, 4:43 a.m., in response to message #2 by Paul Dale Thanks Pauli, should have checked L - I just looked at the comments which said the descriptor was returned in X. Thanks for the prompt response. I am really enjoying this calculator :) Regards John

Re: Matrix Library Message #4 Posted by Paul Dale on 19 Oct 2011, 5:27 a.m., in response to message #3 by John Abbott (S. Africa) There wasn't a comment on this routine about stack and register use???? I've added some clarification nonetheless. The documentation for these is in the doc directory. - Pauli

Re: Matrix Library Message #5 Posted by John Abbott (S. Africa) on 19 Oct 2011, 8:49 a.m., in response to message #4 by Paul Dale My apologies then, I mistook the comments above, applying to the functions below. Still love this wp34s - great effort and thanks! Regards John

Re: Matrix Library Message #6 Posted by Marcus von Cube, Germany on 19 Oct 2011, 10:17 a.m., in response to message #2 by Paul Dale Quote: Still, the source only has one 'M-' label so something has gone awry. This must have been my fault when changing names from M. to M- in the (wrong) hope that would ease the navigation of the built-in matrix commands in the catalogs. I assume it has been fixed by Pauli now.

Re: Matrix Library Message #7 Posted by Walter B on 20 Oct 2011, 12:41 a.m., in response to message #6 by Marcus von Cube, Germany ... and at least some of these routines/commands will be renamed soon.

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