HP Prime Graphing NW280AAABA Coordinates, Distance2, Area4-x2/4, x=-4..4 returns 14.666…

Examples:

If GA is defined to be the unit circle, then area(GA) returns

π.

area(4-x^2/4, x=-4..4) returns 14.666…

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]))

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.

if GA is the point at (0, 0) and GB is defined as plotfunc(4–x^2/4), then distance (GA, GB) returns 3.464… or 2√3.

distance2

Returns the square of the distance between two points or between a point and a curve.

distance2(point1, point2) or distance2(point, curve)

Examples:

distance2(1+i, 3+3i) returns 8.

If GA is the point at (0, 0) and GB is defined as plotfunc(4- x^2/4), then distance2(GA, GB) returns 12.

184 Geometry