HP Forum Archive 14

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linear eqauations on 15c Message #1 Posted by JaSon on 24 Mar 2004, 3:01 p.m. I just bought a used hp 15c and I can't figure out how to use the matrix features. (I got it at a pawn shop for $15 so there was no manual) The most important thing I want to know is how to use the matrix functions to solve linear equations. Thanks JaSon

Re: linear eqauations on 15c Message #2 Posted by bill platt on 24 Mar 2004, 3:04 p.m., in response to message #1 by JaSon You need a copy of the manual. The museum sells it for $15 on CD. Or you can buy the whole collection for $30. Best regards, Bill

Re: linear eqauations on 15c Message #3 Posted by Namir on 24 Mar 2004, 5:43 p.m., in response to message #2 by bill platt I agree with Bill. The matrix operations on the HP15C definitely need a manual, because they are like nothing seen in previous models. While the calculator's memory is limited, the matrix operations are impressive!

Re: linear eqauations on 15c Message #4 Posted by Yanis on 25 Mar 2004, 7:15 a.m., in response to message #3 by Namir Absolutely. I can remember battleing with the darn thing untill I bit the bullet and read the manual. Once you have done it once it is dead easy but you have to read the manual. I used to revel in solvoing AC network analysis problems using complex matricies. Absolutely brilliant - until someone stole it. Lost my 41C the same way.

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