Texas Instruments TI-84 Plus Guide Book

Appendix A: Functions and Instructions 599
Pxl-Off(row,column) Erases pixel at
(row,column); 0
 row  62
and 0
 column  94.
y <
POINTS
5:Pxl-Off(
Pxl-On(row,column) Draws pixel at (row,column);
0
 row  62 and
0
 column  94.
y <
POINTS
4:Pxl-On(
pxl-Test(row,column) Returns 1 if pixel (row,
column) is on, 0 if it is off;
0  row  62 and
0
 column  94.
y <
POINTS
7:pxl-Test(
P4Rx(r,q)
Returns X, given polar
coordinates r and q or a list
of polar coordinates.
y ;
ANGLE
7:P
4Rx(
P4Ry(r,q)
Returns Y, given polar
coordinates r and
q or a list
of polar coordinates.
y ;
ANGLE
8:P4Ry(
QuadReg [Xlistname,
Ylistname,freqlist,
regequ]
Fits a quadratic regression
model to Xlistname and
Ylistname with frequency
freqlist, and stores the
regression equation to
regequ.
…
CALC
5:QuadReg
F
unction or
Instruction/Arguments Result
Key or
Keys/Menu or
Screen/Item

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-