HP Prime Graphing Wireless Calculator - Manual (Page 43)

Geometry 39
its result. The test returns 1 if the objects are parallel;
otherwise, it returns 0.
Perpendicular Tap a straight object (segment, line, and so on) and press
E
to select it. Then tap another straight object and press
E . The test appears at the top of the display, along with
its result. The test returns 1 if the objects are perpendicular;
otherwise, it returns 0.
Isosceles Tap a triangle and press E to select it. Or select three
points in order. Returns 0 if the triangle is not isosceles or if
the three points do not form an isosceles triangle. If the
triangle is isosceles (or the three points form an isosceles
triangle), returns the number order of the common point of the
two sides of equal length (1, 2, or 3). Returns 4 if the three
points form an equilateral triangle or if the selected triangle is
equilateral.
Equilateral Tap a triangle and press E to select it. Or select three
points in order. Returns 1 if the triangle is equilateral or if the
three points form an equilateral triangle; otherwise, it returns
0.
Parallelogram Tap a point and press E to select it. Repeat to select four
points. The test appears at the top of the display, along with
its result. The test returns 0 if the points do not form a
parallelogram. Returns 1 if they form a parallelogram, 2 if
they form a rhombus, 3 if they form a rectangle, and 4 if they
form a square.
Conjugate Tap a circle and press E to select it. Then, select two
points or two lines. The test returns 1 if the two points or lines
are conjugates for the circle; otherwise, it returns 0.
Geometry functions and commands
The list of geometry-specific functions and commands in this
section covers those that can be found by tapping
in
both Symbolic and Numeric view and those that are only
available from the Catlg menu.