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HP-50g - Define functions with matrices inside - slavhp - 05-31-2024 12:50 AM
Just buy a HP-50g, so i'm still a newbie here.
I need to define some functions with matrices inside, but it seem impossible.
An example:
DEFINE(A(M,R)=M*[[COS(R),1][1,COS(R)]])
or anything that contains a matrix inside, like:
DEFINE(A(B)=B*[[1,1][1,1]])
I'm writing the matrices with matrix writer.
Algebric mode
The "define" works well with every operation so far, but when I try to put any matrix inside, it shows "Bad argument type" error.
Thanks and sorry for the newbie question!
RE: HP-50g - Define functions with matrices inside - roem76 - 05-31-2024 02:52 PM
I couldn't make it work in ALG-mode either but I have to say I'm not used to ALG-mode.
But it's rather easy to create a small RPN-program that takes two arguments (M and R) from the stack and does what you want. Not sure how to program that in ALG-Mode though.
Program listing in RPN
\<< \-> M R
\<< [[ 'COS(R)' 1 ][ 1 'COS(R)' ]] M * \->NUM \>>
\>>
'A'
STO // store the program in A
How to use it in RPN-mode:
1.5 // M
30.0 // R
[A] // with softmenu, press [VAR] and [NXT] till you see [A]
Output:
[[ 1.2990 1.5000 ][ 1.5000 1.2990]]
But once created it will work in ALG-mode as well:
'->NUM(A(1.5,30.0))' // ->NUM from the cat menu
HTH
Roman