|Re: How to compute the value of symbolic expressions in HP-50g?|
Message #2 Posted by Hal Bitton in Boise on 16 Aug 2009, 8:16 p.m.,
in response to message #1 by Luca
No problem, Luca,
Just use the equation solver thusly:
Assuming your equation is on the stack level 1:
...copy it (up arrow and put the pointer on level 1, right shift, copy, enter)
...open the equation solver (right shift, num.slv, option 1 (which is Solve equation).
...with the Eq field highlighted, hit paste (right shift, paste) and enter. (note; if your equation is stored in a variable, just hit CHOOSE and navigate to your variable)
...The application will put the equation into the field, and it's variables will appear below. Select any variable and put a value into it (by keying in the number and hitting enter). Highlight the variable you want to solve for and hit solve (f6 softkey). You can put an initial guess into the variable you want to solve for prior to solving if you want to. You can change the values and or solve for any of the variables you want to.
...note that when you exit the solver application, the solution(s) found by the equation solver have automatically been put on the stack as a tagged object(s), which can then be used in subsequent calculations.