HP Prime: how to insert and save formulas in a sort of "Equation library"

[CyberAngel]

(02-11-2020 08:01 AM)pinkman Wrote:  X
Hello Mark,
No the Solver won't create vars on the fly, and math some math students might be helped by the translation of AB into A*B.

Two workarounds:

First (my prefered one): create a program, name it "AllMyVars" or whatever you want, and insert all the vars you need, ie:

Code:


EXPORT Gain, Revenues, Cost;
EXPORT GrossMargin, EBITDA;
// etc.

X
You can then use all those created vars in the Solver. You can find them with the 'Vars' key, under the 'User' softkey menu.

OR - combining another post
refer them using AllMyVars.Gain, AllMyVars.Revenues, AllMyVars.Cost
I would rather save my own Solver app version
and use, say, 'Finance' main app to declare the variables
(among other things)
One can also use START() and RESET() in your own version of an app
I avoid polluting the name space
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