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January 4th, 2012, 05:17 AM  #1 
Newbie Joined: Nov 2011 Posts: 21 Thanks: 0  Calculator question: solving for Y in TI83
Can I solve x('s) for a certain value of y using a graphing calculator? That is, can I plug in y in a function to find the x's? It seems like that would be a faster way to find the zeros of a function than doing the whole [calc  left bound  right bound  guess] routine. Thank you. 
January 4th, 2012, 09:40 AM  #2  
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 9,065 Thanks: 621  Re: Calculator question: solving for Y in TI83 Quote:
 
January 11th, 2012, 01:22 PM  #3  
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 461 Math Focus: Calculus/ODEs  Re: Calculator question: solving for Y in TI83 Quote:
 
January 11th, 2012, 08:49 PM  #4 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 932 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Calculator question: solving for Y in TI83
We like to talk about cool math programs like your Android app. But please don't spam, you wouldn't like MarkFL when he's angry.

January 11th, 2012, 09:01 PM  #5 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 461 Math Focus: Calculus/ODEs  Re: Calculator question: solving for Y in TI83 [attachment=0:19oyzlpk]hulk.jpg[/attachment:19oyzlpk] edit: The user came back and began spamming the same topics as before, so I became angry... 
January 12th, 2012, 04:13 AM  #6  
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,475 Thanks: 886 Math Focus: Elementary mathematics and beyond  Re: Calculator question: solving for Y in TI83 Quote:
Quote:
 
January 12th, 2012, 05:41 AM  #7 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 932 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Calculator question: solving for Y in TI83
It's funny to me, since we're actually happy to have a discussion about these sorts of things  there's absolutely no reason to spam in the first place! While we're at it, let me mention something I'd like to see: a version of PARI/GP for the Kindle Fire. If someone would go through the trouble of converting http://code.google.com/p/paridroid/ for that platform, I'd be happy to shell out a few dollars for it. (Without that, I couldn't use it without rooting my Kindle and doing a bit of conversion, but since the KFire is already running Android it doesn't seem crazy.) 

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