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When I plot a function, the graphing grid lines form small rectangles instead of squares. Even though tick marks are equal, it makes a circle look like an ellipse. Any ideas?

(07-04-2014 02:16 PM)actuary32174 Wrote: [ -> ]When I plot a function, the graphing grid lines form small rectangles instead of squares. Even though tick marks are equal, it makes a circle look like an ellipse. Any ideas?

The zoom scale, perhaps?

Go into plot setup (SHIFT-PLOT). Press CLEAR. You have changed your Y/X tic separately at some point.