Texas Instruments TI-84 Plus Manual Book page 602

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