Example

 

3 A:CHOOSE A;

 

 

 

 

 

 

 

 

 

 

"COMIC STRIPS";

 

 

 

 

 

"DILBERT";

 

 

 

 

 

"CALVIN&HOBBES";

 

 

 

 

 

"BLONDIE":

 

 

 

 

CLRVAR

Clears the specified variable. The syntax is:

 

CLRVAR variable :

 

Example

 

If you have stored

 

 

 

 

 

 

 

{1,2,3,4} in variable L1,

 

 

 

 

entering CLVAR L1

 

 

 

 

will clear L1.

 

 

 

DISP

 

 

 

 

Displays textitem in a row of the display at the

 

line_number. A text item consists of any number of

 

expressions and quoted strings of text. The expressions

 

are evaluated and turned into strings. Lines are numbered

 

from the top of the screen, 1 being the top and 7 being

 

the bottom.

 

DISP line_number;textitem:

 

Example

 

DISP 3;"A is" 2+2

 

 

 

 

 

 

 

 

 

Result: A is 4

 

 

 

 

 

(displayed on line 3)

 

 

 

 

DISPXY

 

 

 

 

 

Displays object at position (x_pos, y_pos) in size font. The

 

syntax is:

 

DISPXY x_pos;y_pos;font;object:

 

The value of object can be a text string, a variable, or a

 

combination of both. x_pos and y_pos are relative to the

 

current settings of Xmin, Xmax, Ymin and Ymax (which

 

you set in the PLOT SETUP view). The value of font is either

 

1 (small) or 2 (large).

Programming

18-27