+- HP Forums (https://www.hpmuseum.org/forum)
+-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html)
+--- Forum: HP Prime (/forum-5.html)
+--- Thread: Using non numeric in Matrix (/thread-4415.html)
Using non numeric in Matrix - jacq1960 - 07-23-2015 10:21 PM
Hi All,
I hope someone can help. I am trying to solve a matrix problem with non numerics and I can't work it out. Obviously it will take numbers but if I try to enter "k" it tells me it's an error.
In fact struggling to find a way of doing it caused the Prime to reset and enter Exam mode! Can anyone help?
Thanks in advance
Jacqueline
RE: Using non numeric in Matrix - roadrunner - 07-24-2015 12:54 AM
Hi Jacqueline,
I'm not exactly sure what you are doing wrong but here are some tips:
Make sure you are in the CAS, not Home.
Don't use the matrix writer (shift 4), instead, use the matrix template which you can access with this key: [attachment=2359] then pick the 6th position over on the top row:
[attachment=2360]
Also make sure the variables you are using are not already defined: shift/mem/user variables and shift/mem/cas vars.
If you still can't get it, post a screen shot of your input or cut and paste the input into a reply.
Road
RE: Using non numeric in Matrix - jacq1960 - 07-24-2015 02:04 AM
Hi Roadrunner!
Thank a MILLION for your help. It's got to be as obvious as anything that I don't have a clue what I'm doing.
Thanks for your advice - I might actually end up passing the high school maths I failed as a teenager!
Cheers
Jacqueline