Texas Instruments TI-83 - Page 379

Tables and Reference Information A-23
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 23 of 58
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
:Repeat
condition
:
commands
:End
:
commands
Executes
commands
until
condition
is true.
†

CTL
6:Repeat
16
-
11
Return
Returns to the calling program.
†

CTL
E:Return
16
-
15
round(
value
[
,
#decimals
]
)
Returns a number, expression,
list, or matrix rounded to
#decimals
(

9).

NUM
2:round(
2
-
13
ä
row(
value
,
matrix
,
row
)
Returns a matrix with
row
of
matrix
multiplied by
value
and
stored in
row
.

MATH
E:
ä
row(
10
-
16
row+(
matrix
,
rowA
,
rowB
)
Returns a matrix with
rowA
of
matrix
added to
rowB
and
stored in
rowB
.

MATH
D:row+(
10
-
16
ä
row+(
value
,
matrix
,
rowA
,
rowB
)
Returns a matrix with
rowA
of
matrix
multiplied by
value
,
added to
rowB
, and stored in
rowB
.

MATH
F:
ä
row+(
10
-
16
rowSwap(
matrix
,
rowA
,
rowB
)
Returns a matrix with
rowA
of
matrix
swapped with
rowB
.

MATH
C:rowSwap(
10
-
16
rref(
matrix
)
Returns the reduced row-
echelon form of a
matrix
.

MATH
B:rref(
10
-
15
R
4
Pr(
x
,
y
)
Returns
R
, given rectangular
coordinates
x
and
y
or a list of
rectangular coordinates.
y
[
ANGLE
]
ANGLE
5:R
4
Pr(
2
-
24
R
4
P
q
(
x
,
y
)
Returns
q
, given rectangular
coordinates
x
and
y
or a list of
rectangular coordinates.
y
[
ANGLE
]
ANGLE
6:R
4
P
q
(
2
-
24