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Re: [50g] Re: newbie eqw question

2008-04-17 by Alan Golightly

Thanks Juan, that helps clear some things up for me.

So you input 'variable name(x)= whatever equation, and then DEF;

which stores that variable name under VAR.

Next, how would you delete that variable, and could you accidentally

overwrite a pre-stored variable name that came with the calculator?

- Alan



----- Original Message ----
From: Juan C. <jcbuchin@...>
To: 50g@yahoogroups.com
Sent: Wednesday, April 16, 2008 4:14:04 PM
Subject: [50g] Re: newbie eqw question


Hello Alan, In order to evaluate that function you have two options (I suppose you are in RPN):


1. You can use DEF.

'FUNC(X)=SQ( X)/(3*SIN( X))' [ENTER] [leftShift] DEF

DEF is associated to key [2]

to run press [3] [VAR] FUNC and you get 21.258502...


2. If you want, you can evaluate the function as a program, you don't need variables for a small function, just manipulate the stack.

« DUP SQ SWAP SIN / 3 / » 'FUNC' [STO]

again, to run press [3] [VAR] FUNC and you get 21.258502...



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