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152 Geometry
grouped according to their type, with each group given its
own menu.
If you are building a calculation, you can select an object from
one of these variables menus. The name of the selected object
is placed at the insertion point on the entry line.
Getting object
properties
As well as employing functions to make calculations in
Numeric view, you can also get various parameters of objects
just by tapping and specifying the object’s name. For
example, you can get the coordinates of a point by entering
the point and pressing
E. Another example: you can
get the formula for a line just by entering its name, or the
center point and radius of a circle just by entering the name
of the circle.
Displaying
calculations in
Plot view
To have a calculation made
in Numeric view appear in
Plot view, just highlight it in
Numeric view and tap
. A checkmark
appears beside the
calculation.
Repeat the procedure to
prevent the calculation being displayed in Plot view. The
checkmark is cleared.
Editing a
calculation
1. Highlight the calculation you want to delete.
2. Tap .
3. Make your change and tap .
Deleting a
calculation
1. Highlight the calculation you want to delete.
2. Tap .
To delete all calculations, press
SJ. Note that deleting
a calculation does not delete any geometric objects from Plot
or Symbolic view.