Hp Prime Graphing Wireless Calculator Uživatelský manuál stáhnout pdf (Strana 60)

100

101

56 Geometry

Coordinates

Given a vector of points, returns a matrix containing the x- and

y-coordinates of those points. Each row of the matrix defines

one point; the first column gives the x-coordinates and the

second column contains the y-coordinates.

coordinates([point1, point2, …, pointn]))

Equation of

Returns the Cartesian equation of a curve in x and y, or the

Cartesian coordinates of a point.

equation(curve) or equation(point)

Example:

If GA is the point at (0, 0), GB is the point at (1, 0), and GC

is defined as circle(GA, GB-GA), then equation(GC)

returns x

2 + y2 = 1.

Parametric

Works like the equation command, but returns parametric

results in complex form.

parameq(GeoObj )

Polar Coordinates

Returns a vector containing the polar coordinates of a point

or a complex number.

polar_coordinates(point) or

polar_coordinates(complex)

Example:

polar_coordinates(√2, √2) returns [2, π/4])

Measure

Distance

Returns the distance between two points or between a point

and a curve.

distance(point1, point2) or distance(point,

curve)

Examples:

distance(1+i, 3+3i) returns 2.828… or 2√2.

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