Matrix Preconditioning Techniques and Applications

There are many books written on MATLAB at both tutorial and advanced levels e.g. [135,279]; see also the official site
http://www.mathworks.com,
http://www.mathworks.com/support/books/
This short appendix is to illustrate some MATLAB notation and highlight the excellent graphics facilities. Further elementary introductions may be found from
http://www.liv.ac.uk/maths/ETC/matbook/ (Chen et al. [135])
http://www.math.uiowa.edu/~atkinson/m72 master.html
(Atkinson and Han [25])
In mathematics, we use either the round braces or the square brackets to denote a vector or matrix. MATLAB sticks to the square brackets for entering a matrix e.g.
>> x = [ 1 2 3] % for a row vector of size 3 >> y = [ 1 2 3 4:6 ] ' % for a column vector of size 6 >> A = [ 1 2 3; 4 5 6; 7 8 9 % for entering a 4 x 3 matrix 0 1 2] % (note the use of ';' and end-of-line) >> B = [ 1 2 3 4 ... 5 6; 7 8 ... % for entering a 2 x 6 matrix 9 0 1 2] % (note the...