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Clrzoom 1.0 By Jim Patterson
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Description
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This program is desighned to make your current graph window into a "friendly" window.  That means that when you trace a graph or move the cross on the graph screen, all the X and Y coordinates are nice numbers (not 10 decmal places of meaningless numbers).  This means that integer values will appear exactly as integers on the graph.  Therefore when you graph a function that is undefined at one point, the hole actually appears on the graph.  It also saves you the trouble of going into the table to get exact coordinates.  

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How to use it
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Graph the function and get the window sizes so you can see the function the way you want it on the screen (just like you usually do).  Then run CLRZOOM.  The program calculates for a second, then redraws the graph with the adjusted settings.  It prints the new Xscl and Yscl values at the bottom of the screen (the distance between each tick mark on the axis).  

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Limitations
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This program evaluates each axis independantly and will work with any window within the calculator's range.  However, when the window is extremely small, there may still be many decmal places because of the need to assighn a coordinate to each pixel.  Likewise, when the window is extremely large, the graph might not hit every integer you want it to.  But any normal function that you may decide to graph is well within it's optimum range.

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Modifications
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You are free to make any improvements to this program that you wish, with the eception of claiming it as your own.  You may remove the text that is displayed on the screen after graphing.  If you happen to make any improvments, send me a copy of the new .83p file at jim3535@hotmail.com.  An Idea for an improvment is to make it smaller.

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Disclaimer
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I am in no way responsable for anything that may happen as a result of using this program.  (not that I can think of anything that could happen, but....)  By keeping this program, you agree to give me credit for my work and include this readme in any redistribution of this program.  