50G solving simultaneous equations with fraction coefficients


Hello all,
I am trying to solve (numerically) simultaneous equations that contain fractions as coefficients. I am using NUM.SLV > solve lin systems. However, on the matrix editor, I am unable to enter fractions as coefficient. What puzzles me more is that the matrix editor, when not in 'solve lin systems' menu, DOES let me enter fractions when I do 'a/b'... It's kind of annoying to convert all the fractions to decimals. Is there any way around this? Thanks a lot..


The lin sys solver solves a matrix system, A*x=B.

Just type the A and B matrices without using the numeric solver.

Make sure the calculator is in exact mode.

Use the matrix editor, MTRW, to enter the B matrix. Leave it on the stack. Enter the A matrix which will then be on the stack below the B matrix. Press the divide key. Problem solved.



If you are trying to enter fraction elements in the Matrix Writer, you have to set the 50G in RPN mode, enter the matrix editor and input the fraction as a division. For instance, if your matrix has a row like 1/2, 3/8 and 5/16, you just type
1 [spc] 2 [/] [ENTER]
3 [spc] 8 [/] [ENTER]
5 [spc] 16 [/] [ENTER]
The Matrix Writer will perform the division and put the fraction in the matrix as a real number.

Hope this helps.


Contact our support department. They may help you out on this matter. I know there is an example of SLE on the site but the coefficients are either decimals or fractions. They may have a solution to this problem. Owner.

Edited: 30 Sept 2008, 3:50 p.m.

Possibly Related Threads...
Thread Author Replies Views Last Post
  [HP Prime] Tips for Solving Differential Equations More Efficiently Chris Pem10 8 1,553 11-21-2013, 08:25 PM
Last Post: Chris Pem10
  HP Prime program: rounding to a fraction Patrice 3 911 10-31-2013, 06:16 AM
Last Post: Joe Horn
  HP-PRIME CAS SOLVING fabrice48 8 1,610 10-19-2013, 01:21 PM
Last Post: Han
  HP15c continued fraction for Ln(Gamma) Tom Grydeland 0 548 09-30-2013, 05:48 AM
Last Post: Tom Grydeland
  HP Prime Solving Nonlinear System of Equations for Complex Results Helge Gabert 11 2,232 09-30-2013, 03:44 AM
Last Post: From Hong Kong
  New article on a new type of neo linear equations Namir 0 659 08-11-2013, 10:27 AM
Last Post: Namir
  OT: DIFFERENTIAL EQUATIONS using the HP-48G/GX Ivan Rancati 2 776 06-04-2013, 04:11 AM
Last Post: Frank Boehm (Germany)
  HP-50g How to store many equations - help needed Timo Labrenz 5 1,196 03-03-2013, 12:22 PM
Last Post: Timo Labrenz
  [WP34s et al.] Solving the TVM equation for the interest rate Dieter 24 2,906 12-01-2012, 05:53 AM
Last Post: Paul Dale
  Solving with the built-in equations of the 35s Palmer O. Hanson, Jr. 4 846 10-17-2012, 03:17 PM
Last Post: Dieter

Forum Jump: