Matrices

Syntax: colDim(matrix)
Function: Returns the number of columns in a matrix
colDim()

Syntax: cumSum(list)
Function: Returns a matrix containing the cumulative sums of each column of the matrix
cumSum()

Syntax: diag(list), diag(rowMatrix), diag(column Matrix)
Function: Returns a matrix with values in its main diagonal
diag()

Syntax: mRow(expression, matrix1, index2)
Function: Returns copy of matrix1 with each element in row index2 of matrix1 replaced with expression*row index1 + index2
mRow()

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