Texas Instruments TI-89 사용자 설명서

Programming

 630

•

 — Refer to the pixels that physically make up the screen. These 

are independent of the viewing window because the screen is always:
159 (0 to 158) pixels wide and 77 (0 to 76) pixels tall.

•

 — Refer to the coordinates in effect for the current viewing window 

(as defined in the Window Editor).

 For information about pixel coordinates in split screens, refer to the Data/Matrix 

Editor module.

Many drawing commands have two forms: one for pixel coordinates and one for point 
coordinates.

 Pixel commands start with 

, such as 

.

Erasing Drawn Objects

Erasing Drawn Objects

Erasing Drawn Objects

Erasing Drawn Objects

 

Pixel coordinates

(independent of viewing window)

Point coordinates

(for standard viewing window)

Erases all drawn objects from the Graph screen.

0,0

@

 158,0

@  

0,76

H 

0,102

@  

158,76

-10,10

10,10

10,-10

-10,-10