plotfunc.m

来自「matlab programming for engineers(2nd)书籍源」· M 代码 · 共 28 行

function plotfunc(fun,points)
%PLOTFUNC Plots a function between the specified points.
% Function PLOTFUNC accepts a function handle, and
% plots the function at the points specified.  
 
% Define variables:
%   fun       -- Function handle
%   msg       -- Error message
%
%  Record of revisions:
%      Date       Programmer          Description of change
%      ====       ==========          =====================
%    03/05/07    S. J. Chapman        Original code

% Check for a legal number of input arguments.
msg = nargchk(2,2,nargin);
error(msg);

% Get function name
fname = func2str(fun);

% Plot the data and label the plot
plot(points,fun(points));
title(['\bfPlot of ' fname '(x) vs x']);
xlabel('\bfx');
ylabel(['\bf' fname '(x)']);
grid on;