Appendix A: Functions and Instructions
375
STATWIZARD OFF
Disables wizard syntax help for statistical
commands, distributions, and seq(.
y N
STATWIZARD
OFF
STATWIZARD ON
Enables wizard syntax help for statistical commands,
distributions, and seq(.
y N
STATWIZARD ON(
stdDev(
list
[
,
freqlist
]
)
Returns the standard deviation of the elements in
list
with
frequency
freqlist
.
y 9
MATH
7:stdDev(
Stop
Ends program execution; returns to home screen.
†
CTL
F:Stop
Store:
value
!
variable
Stores
value
in
variable
.
¿
StoreGDB
n
Stores current graph in database
GDB
n
.
y <
STO
3:StoreGDB
StorePic
n
Stores current picture in picture
Pic
n
.
y <
STO
1:StorePic
String
4
Equ(
string
,Y=
var
)
Converts
string
into an equation and stores it in
Y=
var
.
y N
String
4
Equ(
sub(
string
,
begin
,
length
)
Returns a string that is a subset of another
string
, from
begin
to
length
.
y N
sub(
sum(
list
[
,
start
,
end
]
)
Returns the sum of elements of
list
from
start
to
end
.
y 9
MATH
5:sum(
summation
G
(
expression
[
,
start
,
end
]
)
Displays the MathPrint™ summation entry template and
returns the sum of elements of
list
from
start
to
end,
where
start
<=
end
.
NUM
0: summation
G
(
tan(
value
)
Returns the tangent of a real number, expression, or list.
š
tan
L
1
(
value
)
Returns the arctangent of a real number, expression, or
list.
y A
Tangent(
expression
,
value
)
Draws a line tangent to
expression
at
X
=
value
.
y <
DRAW
5:Tangent(
tanh(
value
)
Returns hyperbolic tangent of a real number, expression, or
list.
y N
tanh(
tanh
L
1
(
value
)
Returns the hyperbolic arctangent of a real number,
expression, or list.
y N
tanh
L
1
(
tcdf(
lowerbound
,
upperbound
,
df
)
Computes the Student-
t
distribution probability between
lowerbound
and
upperbound
for the specified degrees of
freedom
df
.
y =
DISTR
6:tcdf(
Function or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item
