Texas Instruments TI89TITANIUM User Manual - Page 842
MATH/List menu, element
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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 ¸ mat4list(M1) ¸ [14 2 5 36] {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(list) ⇒ expression Returns the maximum element in list. max(matrix1) ⇒ matrix Returns a row vector containing the maximum element of each column in matrix1. Note: See also fMax() and min(). max(2.3,1.4) ¸ max({1,2},{ë 4,3}) ¸ max({0,1,ë 7,1.3,.5}) ¸ max([1,ë 3,7;ë 4,0,.3]) ¸ 2.3 {1 3} 1.3 [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(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. mean({.2,0,1,ë.3,.4}) ¸ .26 mean({1,2,3},{3,2,1}) ¸ 5/3 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(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}) ¸ .2 median([.2,0;1,ë.3;.4,ë.5]) ¸ [.4 ë.3] 842 Appendix A: Functions and Instructions