Texas Instruments TI-83 - Page 361

Tables and Reference Information A-5
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 5 of 58
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
CoordOff
Turns off cursor coordinate
v
alue display.
†
y
[
FORMAT
]
CoordOff
3
-
14
CoordOn
Turns on cursor coordinate
v
alue display.
†
y
[
FORMAT
]
CoordOn
3
-
14
cos(
value
)
Returns cosine of a
real number, expression, or
list.
™
2
-
3
cos
L
1
(
value
)
Returns arccosine of a real
number, expression, or list.
y
[
COS
L
1
]
2
-
3
cosh(
value
)
Returns hyperbolic cosine of a
real number, expression, or
list.
y
[
CATALOG
]
cosh(
15
-
10
cosh
L
1
(
value
)
Returns hyperbolic arccosine
of a real number, expression,
or list.
y
[
CATALOG
]
cosh
L
1
(
15
-
10
CubicReg
[
Xlistname
,
Ylistname
,
freqlist
,
regequ
]
Fits a cubic regression model
to
Xlistname
and
Ylistname
with frequency
freqlist
, and
stores the regression equation
to
regequ
.
…
CALC
6:CubicReg
12
-
26
cumSum(
list
)
Returns a list of the cumulative
sums of the elements in
list
,
starting with the first element.
y
[
LIST
]
OPS
6:cumSum(
11-12
cumSum(
matrix
)
Returns a matrix of the
cumulative sums of
matrix
elements. Each element in the
returned matrix is a cumulative
sum of a
matrix
column from
top to bottom.

MATH
0:cumSum(
10
-
15
dbd(
date1
,
date2
)
Calculates the number of days
between
date1
and
date2
using
the actual-day-count method.
y
[
FINANCE
]
CALC
D:dbd(
14
-
13
value
4
Dec
Displays a real or complex
number, expression, list, or
matrix in decimal format.

MATH
2:
4
Dec
2
-
5