Appendix A: Functions and Instructions
881
4444
Sphere
MATH/Matrix/Vector ops menu
vector
4444
Sphere
Displays the row or column vector in spherical
form [
r
q
f
].
vector
must be of dimension 3 and can be either a
row or a column vector.
Note
:
4444
Sphere
is a display-format instruction,
not a conversion function. You can use it only at
the end of an entry line.
[1,2,3]
4
Sphere
¥
¸
[3.741
...
1.107
...
.640
...
]
[2,
pà
4,3]
4
Sphere
¥
¸
[3.605
...
.785
...
.588
...
]
¸
[
‡
13
p
4
cos
ê
(
3
ø
‡
13
13 )
]
X
Y
Z
(ρ,θ,φ)
θ
φ
ρ
startTmr()
CATALOG
startTmr()
⇒
⇒
⇒
⇒
integer
Returns the current value of the clock in its
integer representation, giving the
starttime
for a
timer. You can enter the
starttime
as an argument
in
checkTmr()
to determine how many seconds
have elapsed.
You can run multiple timers simultaneously.
Note:
See also
checkTmr()
and
timeCnv()
.
startTmr()
¸
148083315
checkTmr(148083315) 34
startTmr()
!
Timer1
©
startTmr()
!
Timer2
©
checkTmr(Timer1)
!
Timer1Value
©
checkTmr(Timer2)
!
Timer2Value
stdDev()
MATH/Statistics menu
stdDev(
list
[
, freqlist
])
⇒
⇒
⇒
⇒
expression
Returns the standard deviation of the elements in
list
.
Each
freqlist
element counts the number of
consecutive occurrences of the corresponding
element in
list
.
Note:
list
must have at least two elements.
stdDev({a,b,c})
¸
stdDev({1,2,5,
ë
6,3,
ë
2})
¸
stdDev({1.3,2.5,
L
6.4},{3,2,5})
¸
4.
stdDev(
matrix1
[
, freqmatrix
]
)
⇒
matrix
Returns a row vector of the standard deviations
of the columns in
matrix1
.
Each
freqmatrix
element counts the number of
consecutive occurrences of the corresponding
element in
matrix1
.
Note:
matrix1
must have at least two rows.
stdDev([1,2,5;-3,0,1;.5,.7,3])
¸
[2.179
...
1.014
...
2]
stdDev([
L
1.2,5.3;2.5,7.3;6,
L
4],[4,2;3
,3;1,7])
¸
[2.7005,5.44695]
Summary of Contents for Voyage 200
Page 36: ...Getting Started 36 D B D B Press Result ...
Page 45: ...Getting Started 45 3 0 D B D D B D Press Result ...
Page 46: ...Getting Started 46 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Page 60: ...Getting Started 60 B D Press Result ...
Page 139: ...Previews 139 8 Complete the operation Press 2 d Steps and keystrokes Display 5 f 2 ...
Page 453: ...Differential Equation Graphing 453 ...
Page 468: ...Tables 468 ...
Page 777: ...Activities 777 ...
