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158 Geometry
four vertices are automatically calculated and the regular
hexagon is drawn.
Special
Eq. triangle Produces an equilateral triangle. Tap at one vertex and press
E. Tap at another vertex and press E. The
location of the third vertex is automatically calculated and the
triangle is drawn.
Square Tap at one vertex and press
E. Tap at another vertex
and press
E. The location of the third and fourth
vertices are automatically calculated and the square is drawn.
Parallelogram Tap at one vertex and press E. Tap at another vertex
and press
E. Tap at a third vertex and press E.
The location of the fourth vertex is automatically calculated
and the parallelogram is drawn.
Curve
Circle Tap at the center of the circle and press E. Tap at a
point on the circumference and press
E. A circle is
drawn about the center point with a radius equal to the
distance between the two tapped points.
Keyboard shortcut:
F
You can also create a circle by first defining it in Symbolic
view. The syntax is circle(GA,GB) where A and B are two
points. A circle is drawn in Plot view such that A and B define
the diameter of the circle.
Ellipse Tap at one focus point and press
E. Tap at the second
focus point and press
E. Tap at point on the
circumference and press
E.
Hyperbola Tap at one focus point and press
E. Tap at the second
focus point and press
E. Tap at point on one branch of
the hyperbola and press
E.
Parabola Tap at the focus point and press
E. Tap either on a line
(the directrix) or a ray or segment nd press
E.