HP Prime Graphing NW280AAABA manual Isoscelestriangle, Isopolygon, Parallelogram

isosceles_triangle

Draws an isosceles triangle defined by two of its vertices and an angle. The vertices define one of the two sides equal in length and the angle defines the angle between the two sides of equal length. Like equilateral_triangle, you have the option of storing the coordinates of the third point into a CAS variable.

isosceles_triangle(point1, point2, angle)

Example:

isosceles_triangle(GA, GB, angle(GC, GA, GB)

defines an isosceles triangle such that one of the two sides of equal length is AB, and the angle between the two sides of equal length has a measure equal to that of ∡ ACB.

isopolygon

Draws a regular polygon given the first two vertices and the number of sides, where the number of sides is greater than 1. If the number of sides is 2, then the segment is drawn. You can provide CAS variable names for storing the coordinates of the calculated points in the order they were created. The orientation of the polygon is counterclockwise.

isopolygon(point1, point2, realn), where realn is an integer greater than 1.

Example

isopolygon(GA, GB, 6) draws a regular hexagon whose first two vertices are the points A and B.

parallelogram

Draws a parallelogram given three of its vertices. The fourth point is calculated automatically but is not defined symbolically. As with most of the other polygon commands, you can store the fourth point’s coordinates into a CAS variable. The orientation of the parallelogram is counterclockwise from the first point.

parallelogram(point1, point2, point3)

Example:

parallelogram(0,6,9+5i) draws a parallelogram whose vertices are at (0, 0), (6, 0), (9, 5), and (3,5). The coordinates of the last point are calculated automatically.

Geometry 173