Zoom:
There are several "zoom" features. For example, look at "Zoom in".
Adjust the window by choosing - #4 Window/Zoom - #3 Zoom In.
Move the magnifying glass to where you wish the new center to be located and press ENTER.
Pressing ESC will remove the magnifying glass. Press - #4 - #5 Standard to return to the standard window.
Grids:
There are three choices of grid backgrounds for your graph under:
, 2 View - Grid
1. No Grid - as seen in the graph at the top of this page (blank white space)
2. Dot Grid - see first graph below
3. Lined Grid - see second graph below
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