B-8   Service and Warranty Information
To maximize accuracy, the TI
.
80 carries more digits internally than it displays.
Values in memory are stored using up to 13 digits with a
two-digit exponent.
¦
You can store values in the Window variables using up to
10 digits (13 digits for 
XSCL
, 
YSCL
, and 
TSTEP
).
¦
When a value is displayed, the displayed value is rounded
as specified by the 
MODE
 setting (Chapter 1), with a
maximum of 10 digits and a two-digit exponent.
¦
REGEQ
 displays up to 13 digits.
XMIN
 is the center of the leftmost pixel, 
XMAX
 is the center of
the next to the rightmost pixel. (The rightmost pixel is
reserved for the busy indicator.) 
@
X
 is the distance between
the centers of two adjacent pixels.
¦
@
X
 is calculated as 
(XMAX–XMIN)
à
62
.
¦
If 
@
X
 is entered from the Home screen or a program, then
XMAX
 is calculated as 
XMIN+
@
X
×
62
.
Ymin
 is the center of the next to the bottom pixel, 
YMAX
 is
the center of the top pixel. 
@
Y
 is the distance between the
centers of two adjacent pixels.
¦
@
Y
 is calculated as 
(YMAX
.
YMIN)
à
46
.
¦
If 
@
Y
 is entered from the Home screen or a program, then
YMAX
 is calculated as 
YMIN+
@
Y
×
46
.
Cursor coordinates are displayed as six characters, which may
include a negative sign, decimal point, and exponent.
Accuracy Information
Computational
Accuracy
Graphing
Accuracy