Operation Manual

Chapter 10: Matrices 161
Matr
4list(matrix,column#,listname)
List4matr(
List4matr( (lists stored to matrix) fills matrixname column by column with the elements from each list. If
dimensions of all lists are not equal, List4matr( fills each extra matrixname row with 0. Complex lists are
not valid.
List4matr(listA,...,list n,matrixname)
cumSum(
cumSum( returns cumulative sums of the elements in matrix, starting with the first element. Each
element is the cumulative sum of the column from top to bottom.
cumSum(matrix)
Row Operations
MATRX MATH menu items A through F are row operations. You can use a row operation in an
expression. Row operations do not change
matrix in memory. You can enter all row numbers and values
as expressions. You can select the matrix from the
MATRX NAMES menu.
ref(, rref(
ref( (row-echelon form) returns the row-echelon form of a real matrix. The number of columns must be
greater than or equal to the number of rows.
ref(matrix)