07-23.txt

《MATLAB R2007基础教程》 清华大学出版社,包含电子课件,实例原文件,习题答案,都是基于matlab实现

function meters = convert2meters(miles, varargin)
% Converts MILES (plus optional FEET and INCHES input)
% values to METERS.
if nargin < 1 || nargin > 3
   error('1 to 3 input arguments are required');
end
   function feet = convert2Feet(argsIn)
   % Nested function that converts miles to feet and adds in 
   % optional FEET argument.
   feet = miles .* 5280;
   if argsIn >= 2
      feet = feet + varargin{1};
   end
   end  % End nested function convert2Feet
   function inches = convert2Inches(argsIn)
   % Nested function that converts feet to inches and adds in 
   % optional INCHES argument.
   inches = feet .* 12;
   if argsIn == 3
      inches = inches + varargin{2};
   end
   end  % End nested function convert2Inches
feet = convert2Feet(nargin);
inches = convert2Inches(nargin);
meters = inches .* 2.54 ./ 100;
end  % End primary function convert2meters
feet = convert2Feet(nargin);
inches = convert2Inches(nargin);
meters = inches .* 2.54 ./ 100;
end  % End primary function convert2meters


>> convert2meters(5)