Texas Instruments TI-73 EXPLORER - Manual (Page 307)

Appendix A: Function and Instruction Reference
301
73A-ENG.DOC AppxA: Function/Instruction Reference, English Julie Hewlett Revised: 07/29/98 1:10 PM Printed:
05/19/99 9:03 AM Page 301 of 36
prgm name
‡ 8
C T R L
Programming command; calls
prgm
name as a
subroutine in an existing program. name can be a
program not yet created.
PROGRAM:VOLUME
:Input "DIAMETER=",D
:Input "HEIGHT=",H
:prgmAREA
:A¦HÜV
:Disp "VOLUME=",V
:Pause
PROGRAM:AREA
:D/2ÜR
:p¦R Ü A
:Return
Prompt variableA[,variableB, ]
‡ 8
I / O
Programming command; displays specified variable
followed by
=?
. During program execution, at each
prompt, the user enters a value or expression for each
variable, and then presses b.
Y
n
functions are
not valid with
Prompt
.
PROGRAM:PROMPT
:Prompt Xmin
:Prompt Xmax
:Prompt Ymin
:Prompt Ymax
The calculator adjusts WINDOW
variable values according to
user’s input.
Pt-Change( X , Y )
2 P O I N T S
Changes a point’s status (on or off) at (X,Y).
Pt-Change( L 6,2) b
Pt-Off( X,Y[,mark] )
Pt-On( X,Y[,mark] )
2 P O I N T S
Erases or draws a point at (X,Y) using mark, (
1
= ¦ ;
2
= › ;
3
=
+
). If mark is omitted, the default mark is
box. If you specified mark to turn on a point with
Pt-On(
, you must specify the same mark when turning
it off.
Pt-Off(3,5,2) b
Pt-On(3,5,2) b
Pxl-Change( row,column )
2
P O I N T S
Changes a pixel’s status (on or off) at (row, column);
0row62, and 0column94.
PxlChange(10,75) b
Pxl-Off( row,column )
Pxl-On( row,column )
2
P O I N T S
Erases or draws a pixel at (row, column); 0row62,
and 0column94.
Pxl-Off(10,75) b
Pxl-On(10,75) b