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Dealing with functions
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02012014 03:24 AM
I am trying to figure out how to plot a function that is held a solver Variable. If I store the said equation in, say, E1 I can then solve it. But when I want to plot the same function it needs to be in a different format for plotting.
What I am trying to do is store the equation in a program and then solve it and plot it, as well. Is there any trick to this?
For the solver I can use any combinations of variables I want, but when It comes to plotting, you cannot seem to set the dependent and independt variables for the plot.
Oh and as a random question is anyone working on an equation browser?
Mick C
HP_Prime_an_introduction
Re: Dealing with functions
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02012014 07:00 AM  edited 02012014 07:02 AM
Here's one possible way of doing it: STARTVIEW(1) will graph both sides of the currently selected equation in the Solver (assuming that the Solver is the current app, of course). Make sure that only one equation is selected.
However, plotting from the solver only makes sense after the solver has solved the equation, so I suggest doing a STARTVIEW(2) first, to force the Numeric View to appear, which is where solving is done. Whatever variable is left selected in the Numeric View will be the independent variable in the graph.
Joe
Re: Dealing with functions
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02012014 03:58 PM
Thank you for the Reply Joe. The problem is with the diffrent formats of the equations in E1 and V1 (Solver and Advanced Graphing.) E1 handles the variables fine, but V1 wants the variables in terms of x and y. So I either have to rewrite the formula or deal with reassinging the variables somehow.
Here is what I am trying to do, I have another program that solves the formula for I and Vd.
Shockley Plot
EXPORT Is,Vd,Vt,n;
EXPORT SHOCKLEYP()
BEGIN
'I=10ᴇ−12*(e^(Vd/(1*26ᴇ−3))1)'▶V1;
STARTVIEW(1);
//STARTAPP("Advanced Graphing")
END;
Kind Regards
Mick C
Re: Dealing with functions
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02012014 04:15 PM  edited 02012014 04:16 PM
I have a solution, solve for the independent variable first in the solver menu.
Thank you
Mick C