14.6 Evaluating Matrix Elements

Once an element of a matrix has been assigned, it may be referred to in standard array element notation. Thus y(2,1) refers to the element in the second row and first column of the matrix y.

The easiest way to access an element of a matrix-valued expression is to assign the expression to a variable and then use the syntax described above. Another way is to use the part operator: if M is either a matrix or a matrix-valued expression then part(M, i) evaluates to row i represented as a list, and (hence) part(M, i, j) evaluates to the matrix element in row i and column j.

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