MATLAB Object-Oriented Programming

Example Code Discussion

d = d - 1;
end
end
str = [s{:}];
end

function disp(obj)
c = char(obj);
if iscell(c)
disp([' ' c{:}])
else
disp(c)
end
end

Overload disp function. Display

objects as output of char

method.

For information about this code,

see “Overload disp for

DocPolynom” on page 19-17

function dispPoly(obj,x)
p = char(obj);
e = @(x)eval(p);
y = zeros(length(x));
disp(['y = ',p])
for k = 1:length(x)
y(k) = e(x(k));
disp([' ',num2str(y(k)),...
' = f(x = ',...
num2str(x(k)),')'])
end
end

Return evaluated expression

with formatted output.

Uses output of char method to

evaluate polynomial at specified

values of independent variable.

For information about this code,

see “Display Evaluated

Expression” on page 19-18

Representing Polynomials with Classes