3x3 matrix operations for the HP-12C - 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: 3x3 matrix operations for the HP-12C (/thread-68690.html) |
3x3 matrix operations for the HP-12C - Kalevipoeg - 02-06-2005 There has been a lot of messages concerning trig. functions for the HP-12C. 01 0 USER INSTRUCTIONS 1) Key in the program 2) Store elements of matrix A into registers R1 through R9 3) Store elements of matrix B into registers n, i and PV 4) Press [f] [PRGM] [R/S] to calculate x1 5) Press [R/S] to calculate x2 6) Press [R/S] to calculate x3 7) Press [R/S] once again to return elements of matrices A and B into their original registers (-1.00 will be displayed) 8) For a new case, go to step 2 or 3. Rem: If Det A=0, then the system is linearly dependent and this program is not applicable (Error 0 will be displayed) Ref: For example HP-34C Mathematics Applications Book Re: 3x3 matrix operations for the HP-12C - Namir - 02-06-2005 Cool! Do you store the matix A by rows or by columns in registers 1 through 9?
Namir
Re: 3x3 matrix operations for the HP-12C - Kalevipoeg - 02-06-2005 Store elements of matrix A by rows: Re: 3x3 matrix operations for the HP-12C - Namir - 02-06-2005 Thanks!!!
Re: 3x3 matrix operations for the HP-12C - GWB - 02-06-2005 Very nice! What will come next? Numerical integration? I wonder why HP did not include more scientific functions in the new Platinum model. Are they affraid that would scare potential buyers? If so, they are underestimating business people. Or have they just lost the know-how?. Don't you think it is time to realese a 15C Platinum, or at least a 15C Tin? Oops, I'm getting off-topic. Sorry. Regards, Gerson
Re: 3x3 matrix operations for the HP-12C - Mike T. - 02-11-2005 I just know I'm missing something here - but I'm I know that the HP11C doesn't have STO PV or RCL PV so I was wondering what the HP11C equivalents are in this case ?
Thanks
Re: 3x3 matrix operations for the HP-12C - GWB - 02-11-2005 Hi, n, i, PV, PMT and FV are special financial register of the 12C. You can use the remanaing registers instead. The author has used some of those because he ran out of ordinary registers as his program grew, I think. Regards,
Gerson.
|