HP Prime: CAS variable to Solver error message

[CR Haeger]

(06-02-2014 05:50 PM)Rich Wrote:  Not sure if this is the same issue, but i would typically use this as a workaround, before the latest firmware update, to enter a formula in the Solver App:

In the CAS screen I can enter this:
E1:='a+b=c'

Then click on the Solver App and the system would ask if you wanted the variables to be created for each unknown variable, specifically the ones that are lower case.

This would result in a formula of
a+b=c

within the E1 variable within the solver app. Now when i do this same procedure, after the firmware update, i get:
Error: Syntax Error

in the E1 variable within the Solver App. When i click on Show, it does display the equation but i cannot use it. Clicking on the Num button i get No variable in equation, displayed.

So i have an exam on Thursday and i really need this function... Anyone know if they see an error with my steps or have another work around. I used this method extensively last semester and it appears not to work after i updated the firmware to 32.6030.

Rich - I think you and I are seeing the same issue, error message with the new firmware.

In your example however, make sure the check the E1 box before clicking NUM. This should take you to the Num screen and prompt for a,b,c as new variables - which then can be solved.

I tend to save the CAS formula as a variable before saving into Solve.E1. I do this as I usually want to do work on the formula in CAS - and I hate retyping it.

Good luck with your exam.