HP Prime Graphing NW280AAABA manual Ymax

coordinates using the Cartesian plane defined in the current app by the variables Xmin, Xmax, Ymin, and

Ymax.

The remaining thirteen work with pixel coordinates where the pixel 0,0 is the top left pixel of the GROB, and 320,

240is the bottom right. Functions in this second set have a _P suffix to the function name.

C→PX Converts from Cartesian coordinates to screen coordinates.

Syntax: C→PX(x,y) or C→PX({x,y})

DRAWMENU Syntax: DRAWMENU({string1, string2, …, string6})

Draws string1 through string (for n≤6) on the menu buttons.

FREEZE Syntax: FREEZE

Pauses program execution until a key is pressed. This prevents the screen from being redrawn after the end of the program execution, leaving the modified display on the screen for the user to see.

PX→C Converts from screen coordinates to Cartesian coordinates.

RGB Syntax: RGB(R, G, B, [A])

Returns an integer number that can be used as the color parameter for a drawing function, based on Red-, Green- and Blue-component values (each 0 to 255).

If Alpha is greater than 128, returns the color flagged as transparent. There is no alpha channel blending on Prime.

Examples:

RGB(255,0,128) returns 16711808 RECT(RGB(0,0,255)) makes a blue screen LINE(0,0,8,8,RGB(0,255,0)) draws a green line

Programming in HP PPL 537