Texas Instruments TI-89 Titanium - Page 213

Appendix A: Functions and Instructions 207
mat4list() MATH/List menu
mat4list( 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]