HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 222)

100

101

Right Triangle

Draws a right triangle given two points and a scale factor. One leg of the right triangle is dened by the two

points, the vertex of the right angle is at the rst point, and the scale factor multiplies the length of the rst

leg to determine the length of the second leg.

right_triangle(point1, point2, realk)

Example:

right_triangle(GA, GB, 1) draws an isosceles right triangles with its right angle at point A, and with

both legs equal in length to segment AB.

Quadrilateral

Tap at each vertex, pressing after each tap.

Parallelogram

Tap one vertex and press . Tap another vertex and press . Tap a third vertex and

press

. The location of the fourth vertex is automatically calculated and the parallelogram is

drawn.

Rhombus

Draws a rhombus, given two points and an angle. As with many of the other polygon commands, you can

specify optional CAS variable names for storing the coordinates of the other two vertices as points.

rhombus(point1, point2, angle)

Example:

rhombus(GA, GB, angle(GC, GD, GE)) draws a rhombus on segment AB such that the angle at

vertex A has the same measure as ∡DCE.

Rectangle

Draws a rectangle given two consecutive vertices and a point on the side opposite the side dened by the rst

two vertices or a scale factor for the sides perpendicular to the rst side. As with many of the other polygon

commands, you can specify optional CAS variable names for storing the coordinates of the other two vertices

as points.

rectangle(point1, point2, point3) or rectangle(point1, point2, realk)

Examples:

rectangle(GA, GB, GE) draws a rectangle whose rst two vertices are points A and B (one side is

segment AB). Point E is on the line that contains the side of the rectangle opposite segment AB.

rectangle(GA, GB, 3, p, q) draws a rectangle whose rst two vertices are points A and B (one side

is segment AB). The sides perpendicular to segment AB have length 3*AB. The third and fourth points are

stored into the CAS variables p and q, respectively.

174 Chapter 9 Geometry

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