User Manual

Appendix A: Functions and Instructions 467
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 467 of 132
mat
4
list()
MATH/List menu
mat
4
list(
matrix
)
⇒
list
Returns a list filled with the elements in
matrix
. The elements are copied from
matrix
row by row.
mat4list([1,2,3])
¸
{1 2 3}
[1,2,3;4,5,6]
!
M1
¸
[
1
2 3
4 5 6
]
mat4list(M1)
¸
{1 2 3 4 5 6}
max()
MATH/List menu
max(
expression1
,
expression2
)
⇒
expression
max(
list1
,
list2
)
⇒
list
max(
matrix1
,
matrix2
)
⇒
matrix
Returns the maximum of the two arguments.
If the arguments are two lists or matrices,
returns a list or matrix containing the
maximum value of each pair of
corresponding elements.
max(2.3,1.4)
¸
2.3
max({1,2},{
ë
4,3})
¸
{1 3}
max(
list
)
⇒
expression
Returns the maximum element in
list
.
max({0,1,
ë
7,1.3,.5})
¸
1.3
max(
matrix1
)
⇒
matrix
Returns a row vector containing the
maximum element of each column in
matrix1
.
Note: See also
fMax()
and
min()
.
max([1,
ë
3,7;
ë
4,0,.3])
¸
[1 0 7]
mean()
MATH/Statistics menu
mean(
list
[
, freqlist
]
)
⇒
expression
Returns the mean of the elements in
list
.
Each
freqlist
element counts the number of
consecutive occurrences of the
corresponding element in
list
.
mean({.2,0,1,
ë
.3,.4})
¸
.26
mean({1,2,3},{3,2,1})
¸
5/3
mean(
matrix1
[
, freqmatrix
]
)
⇒
matrix
Returns a row vector of the means of all the
columns in
matrix1.
Each
freqmatrix
element counts the number
of consecutive occurrences of the
corresponding element in
matrix1
.
In vector format rectangular mode:
mean([.2,0;L1,3;.4,L.5])
¸
[L.133
...
.833
...
]
mean([1/5,0;L1,3;2/5,L1/2])
¸
[
ë
2/15 5/6]
mean([1,2;3,4;5,6],[5,3;4,1;
6,2])
¸
[47/15, 11/3]
median()
MATH/Statistics menu
median(
list
)
⇒
expression
Returns the median of the elements in
list1
.
median({.2,0,1,
ë
.3,.4})
¸
.2
median(
matrix1
)
⇒
matrix
Returns a row vector containing the medians
of the columns in
matrix1
.
Note: All entries in the list or matrix must
simplify to numbers.
median([.2,0;1,
ë
.3;.4,
ë
.5])
¸
[.4
ë
.3]