Twovar Math/Statistics Menu; Unarchiv Catalog; Unitv Math/Matrix/Vector Ops Menu; Unlock Catalog - Texas Instruments TITANIUM TI-89 User Manual

TwoVar
MATH/Statistics menu
list1 list2
TwoVar ,
Calculates the
the system statistics variables.
All the lists must have equal dimensions except
for .
list5
represents xlist.
list1
represents ylist.
list2
list3 represents frequency.
list4 represents category codes.
list5 represents category include list.
Note:
list1
or c1–c99 (columns in the last data variable
shown in the Data/Matrix Editor).
have to be a variable name and cannot be c1–c99
.
Unarchiv
CATALOG
var1
Unarchiv
Moves the specified variables from the user data
archive memory to RAM.
You can access an archived variable the same as
you would a variable in RAM. However, you
cannot delete, rename, or store to an archived
variable because it is locked automatically.
To archive variables, use
unitV()
MATH/Matrix/Vector ops menu
) ⇒ ⇒ ⇒ ⇒
vector1
unitV(
Returns either a row- or column-unit vector,
depending on the form of
vector1 must be either a single-row matrix or a
single-column matrix.
Unlock
CATALOG
var1 var2
Unlock [,
Unlocks the specified variables.
Note: The variables can be locked using the
command.
Lock
892
[ ]
list3 list4 list5
, [ ] [, , ]
statistics and updates all
TwoVar
through must be a variable name
list4
var2 var3
[, ] [, ] ...
Archive
vector
vector1
, var3
][ ] ...
{0,1,2,3,4,5,6} ! L1 ¸
{0,2,3,4,3,4,6} ! L2 ¸
TwoVar L1,L2 ¸
ShowStat ¸
does not
list5
10 ! arctest ¸
Archive arctest ¸
5 ù arctest ¸
15 ! arctest ¸
.
N
Unarchiv arctest ¸
15 ! arctest ¸
unitV([a,b,c]) ¸
[
.
unitV([1,2,1]) ¸
unitV([1;2;3]) ¸
Appendix A: Functions and Instructions
a b
añ +bñ +cñ añ +bñ +cñ
‡ 6
[
{0 1 2 }
...
{0 2 3 }
...
Done
10
Done
50
Done
15
c
]
añ +bñ +cñ
‡ 6 ‡ 6
6 ]
6 3
‡ 14
 
14
 
‡ 14
 
7
3 ø ‡ 14
 
14