Texas Instruments TI-89 사용자 설명서

Programming

 631

Drawing a Point or Pixel

Drawing a Point or Pixel

Drawing a Point or Pixel

Drawing a Point or Pixel

Drawing Lines and Circles

Drawing Lines and Circles

Drawing Lines and Circles

Drawing Lines and Circles

PtChg or
PxlChg

Toggles (inverts) a pixel at the specified coordinates. 
PtChg, which uses point coordinates, affects the pixel 
closest to the specified point. If the pixel is off, it is turned 
on. If the pixel is on, it is turned off.

PtOff or
PxlOff

Turns off (erases) a pixel at the specified coordinates. 
PtOff, which uses point coordinates, affects the pixel 
closest to the specified point.

PtOn or
PxlOn

Turns on (displays) a pixel at the specified coordinates. 
PtOn, which uses point coordinates, affects the pixel 
closest to the specified point.

PtTest or
PxlTest

Returns true or false to indicate if the specified coordinate 
is on or off, respectively.

PtText or
PxlText

Displays a character string at the specified coordinates.

Circle or
PxlCrcl

Draws, erases, or inverts a circle with a specified center 
and radius.

Draws a line with a specified slope through a specified 
point.

Line or
PxlLine

Draws, erases, or inverts a line between two sets of 
coordinates.