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A-8 Tables and Reference Information
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 8 of 58
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
End
Identifies end of
For(
,
If
-
Then
-
Else
,
Repeat
, or
While
loop.
†
CTL
7:End
16
-
12
Eng
Sets engineering display mode.
†
z
Eng
1
-
10
Equ
4
String(
Y=
var
,Str
n
)
Converts the contents of a
Y=
var
to a string and stores it in
Str
n
.
y
[
CATALOG
]
Equ
4
String(
15
-
7
expr(
string
)
Converts
string
to an
expression and executes it.
y
[
CATALOG
]
expr(
15
-
7
ExpReg
[
Xlistname
,
Ylistname
,
freqlist
,
regequ
]
Fits an exponential regression
model to
Xlistname
and
Ylistname
with frequency
f
reqlist
, and stores the
regression equation to
regequ
.
…
CALC
0:ExpReg
12
-
26
ExprOff
Turns off the expression
display during
TRACE
.
†
y
[
FORMAT
]
ExprOff
3
-
14
ExprOn
Turns on the expression
display during
TRACE
.
†
y
[
FORMAT
]
ExprOn
3
-
14
Ü
cdf(
lowerbound
,
upperbound
,
numerator df
,
denominator df
)
Computes the
Û
distribution
probability between
lowerbound
and
upperbound
for the specified
numerator df
(degrees of freedom) and
denominator df
.
y
[
DISTR
]
DISTR
9:
Û
cdf(
13
-
32
Fill(
value
,
matrixname
)
Stores
value
to each element in
matrixname
.
MATH
4:Fill(
10
-
13
Fill(
value
,
listname
)
Stores
value
to each element in
listname
.
y
[
LIST
]
OPS
4:Fill(
11
-
11
Fix
# Sets fixed-decimal mode for #
of decimal places.
†
z
0123456789
(select one) 1
-
10
Float
Sets floating decimal mode.
†
z
Float
1
-
10