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TI-83 Plus Tables and Reference Information 669
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
Lbl
label
Creates a
label
of one or two
characters.
†
CTL
9:Lbl
lcm(
valueA,valueB
)
Returns the least common multiple of
valueA
and
valueB
, which can be
real numbers or lists.
NUM
8:lcm(
length(
string
)
Returns the number of characters in
string
.
y
N
length(
Line(
X1
,
Y1
,
X2
,
Y2
)
Draws a line from (
X1
,
Y1
) to (
X2
,
Y2
).
y
<
DRAW
2:Line(
Line(
X1
,
Y1
,
X2
,
Y2
,0)
Erases a line from (
X1
,
Y1
) to
(
X2
,
Y2
).
y
<
DRAW
2:Line(
LinReg(a+bx)
[
Xlistname
,
Ylistname
,
f
re
q
list
,
regequ
]
Fits a linear regression model to
X
listname
and
Ylistname
with
frequency
f
re
q
list
, and stores the
regression equation to
regequ
.
…
CALC
8:LinReg(a+bx)
LinReg(ax+b)
[
Xlistname
,
Ylistname
,
f
re
q
list
,
regequ
]
Fits a linear regression model to
X
listname
and
Ylistname
with
frequency
f
re
q
list
, and stores the
regression equation to
regequ
.
…
CALC
4:LinReg(ax+b)
LinRegTTest
[
Xlistname
,
Ylistname
,
f
re
q
list
,
alternative
,
regequ
]
Performs a linear regression and a
t
-test.
alternative
=
L
1
is <;
alternative
=
0
is
ƒ
;
alternative
=
1
is >.
†
…
TESTS
E:LinRegTTest
@
List(
list
)
Returns a list containing the
differences between consecutive
elements in
list
.
y
9
OPS
7:
@
List(