Page 51 - MATLAB an introduction with applications
P. 51

36 ———  MATLAB: An Introduction with Applications


                                        9
                                      10
                                        8
                                      10
                                        7
                                      10
                                        6
                                      10
                                        5
                                      10

                                        4
                                      10
                                        3
                                      10
                                        2
                                      10
                                         0              1               2             3
                                        10             10             10            10
                                                         Fig. E1.5 (e)
                   Example E1.6:
                       (a) Plot the parametric space curve of
                            x ( t ) = t
                            y ( t ) = t 2
                                  3
                            z ( t ) = t ;                       0  ≤   t  ≤  1.0
                                      2
                                          2
                       (b)     z  = –7 / (1+ x  + y ); | x |  ≤ 5,  | y | ≤  5
                   Solution:
                       (a)  >> t = linspace(0, 2,100);
                            >> x =t; y = t. ^2; z = t. ^3;
                            >> plot 3 (x, y, z), grid
                   The plot is shown in figure E1.6 (a).




                                       8

                                       6

                                       4

                                       2

                                       0
                                       4
                                           3                                         2
                                                2                             1.5
                                                                        1
                                                     1
                                                                 0.5
                                                          0 0
                                                         Fig. E1.6 (a)





                   F:\Final Book\Sanjay\IIIrd Printout\Dt. 10-03-09
   46   47   48   49   50   51   52   53   54   55   56