Graphscreen Operator

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Timothy Foster 03 Feb 2013 00:33 Admin Guest I found this little guy sitting in my pile of things I did a long time ago: ClrDraw FnOn Full AxesOn DispGraph 2→F Repeat Ans=45 If sum(Ans={92,93,94,82,83,84,72,73,74 Then Ans-36-5int(.1Ans expr(sub("789 456 123",Ans,1→F DelVar A End If Ans=32 or Ans=33 1+(Ans=33→A If Ans=24 or Ans=26 Then 1-2(Ans=26 Ans(Xmax-Xmin)/(10F-1→T Xmin-Ans→Xmin Xmax-T→Xmax DelVar A End If Ans=25 or Ans=34 Then 1-2(Ans=34 Ans(Ymax-Ymin)/(10F-1→T Ymin+Ans→Ymin Ymax+T→Ymax DelVar A End If Ans=85 Then Xmin(F-(F-1)(A=2→Xmin Xmax(F-(F-1)(A=2→Xmax Ymin(F-(F-1)(A=1→Ymin Ymax(F-(F-1)(A=1→Ymax DelVar A End If Ans=95 Then Xmin/(F-(F-1)(A=2→Xmin Xmax/(F-(F-1)(A=2→Xmax Ymin/(F-(F-1)(A=1→Ymin Ymax/(F-(F-1)(A=1→Ymax DelVar A End If Ans=12 Then ZStandard DelVar A End DispGraph getKey End Supposedly, this allows you to dynamically manipulate the graphscreen without having to input the window boundaries every time. Using the buttons below causes it to perform the respective actions. Arrow Keys — Determines the direction by which the screen moves relative to the origin. + — Zoom in. The axes scales become smaller. - — Zoom out. The axes scales become larger. Number Pad — Determines the scale factor. 9 makes very large changes; 1 makes very little changes. X,T,θ,n — This button plus a zoom button will exclusively zoom the x-axis. STAT — This button plus a zoom button will exclusively zoom the y-axis. WINDOW — Resets the graph screen to a window of X(-10,10) Y(-10,10). CLEAR — Halts program. Attachment: Reply | Edit | Link

burr 03 Feb 2013 04:54 Admin Guest That looks nice :) I'm curious, why did you create that? Attachment: Reply | Edit | Link

Timothy Foster 03 Feb 2013 06:27 Admin Guest I can't remember. I probably wanted to observe graphs dynamically like what you can do on various computer programs and the new Nspires. Attachment: Reply | Edit | Link

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