Vector and matrix element access

Elements of vectors and matrices can be accessed in two ways: With the mindex function and with angular brackets [ ].

• [ expression ] accesses an element of a vector. Indexes start at 1.
• [ expression , expression ] accesses an element of a matrix. Indexes start at 1, and the first index is the row number. Either of the expressions can be replaced by an asterisk *, then the whole row or column will be returned as a vector.