HP Prime Graphing Wireless Calculator Manual de usuario descargar pdf (Pagina 647)

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x2, y2 are optional and if not specied will be the bottom right of srcGRB.

x1, y1 are optional and if not specied will be the top left of srcGRB.

Example: SUBGROB(G1, G4) will copy G1 in G4.

TEXTOUT_P, TEXTOUT

Syntax: TEXTOUT(text [ ,G], x, y [ ,font, c1, width, c2])

Syntax: TEXTOUT_P(text [ ,G], x, y [ ,font, c1, width, c2])

Draws text using color c1 on graphic G at position x, y using font. Do not draw text more than width pixels

wide and erase the background before drawing the text using color c2.

G can be any of the graphics variables and is optional. The default is G0. This command returns the x-

coordinate of the pixel at the end of the text output.

Font can be:

0: current font selected on the Homes Settings screen, 1: small font 2: large font. Font is optional and if not

specied is the current font selected on the Homes Settings screen.

c1 can be any color specied as #RRGGBB. The default is black (#000000).

width is optional and if not specied, no clipping is performed.

c2 can be any color specied as #RRGGBB. c2 is optional. If not specied the background is not erased.

Example:

The following program displays the successive approximations for π using the series for the arctangent(1).

Note that a color for the text, and for background, has been specied (with the width of the text being limited

to 100 pixels).

EXPORT PISERIES()

BEGIN

LOCAL sign;

K:=2;

A:=4;

sign:=−1;

RECT();

TEXTOUT_P("N=",0,0);

TEXTOUT_P("PI APPROX=",0,30);

REPEAT

A+sign*4/(2*K-1)▶A;

TEXTOUT_P(K ,35,0,2,#FFFFFF,100,#333399);

TEXTOUT_P(A ,90,30,2,#000000,100,#99CC33);

sign*-1▶sign;

K+1▶K;

UNTIL 0;

Program commands 599

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HP Prime Graphing Wireless Calculator Manual de usuario Pagina 647

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