Page 40 -
P. 40

if                  Conditional evaluation.
                             length              Gives the length of an array.
                             load                Loads data or variable values from previous sessions
                                                  into current MATLAB session.
                             linspace            Generates an array with a specified number of points
                                                  between two values.
                             meshgrid            Makes a 2-D array of coordinate squares suitable for
                                                  plotting surface meshes.
                             mesh                Plots a mesh surface of a surface stored in a matrix.
                             meshc               The same as mesh, but also plots in the same figure
                                                  the contour plot.
                             min                 Finds the smallest element of an array.
                             max                 Finds the largest element of an array.
                             mean                Finds the mean of the elements of an array.
                             moviein             Creates the matrix that contains the frames of an ani-
                                                  mation.
                             movie               Plays the movie described by a matrix M.
                             orient              Orients the current graph to your needs.
                             plot                Plots points or pairs of arrays on a 2-D graph.
                             plot3               Plots points or array triples on a 3-D graph.
                             polar               Plots a polar plot on a polar grid.
                             pol2cart            Polar to Cartesian conversion.
                             print               Prints a figure to the default printer.
                             quit or exit        Leave MATLAB program.
                             rand                Generates an array with elements randomly chosen
                                                  from the uniform distribution over the interval [0, 1].
                             randn               Generates an array with elements randomly chosen
                                                  from the normal distribution function with zero
                                                  mean and standard deviation 1.
                             subplot             Partitions the graphics window into sub-windows.
                             save                Saves MATLAB variables.
                             std                 Finds the standard deviation of the elements of an
                                                  array.
                             stem                Plots the data sequence as stems from the x-axis ter-
                                                  minated with circles for the data value.
                             view                Views 3-D graphics from different perspectives.
                             who                 Lists all variables in the workspace.
                             xlabel, ylabel,     Labels the appropriate axes with text and title.
                              zlabel, title
                             (x>=x1)             Boolean function that is equal to 1 when the condition
                                                  inside the parenthesis is satisfied, and zero otherwise.









                             © 2001 by CRC Press LLC
   35   36   37   38   39   40   41   42   43   44   45