clc; clear;
X1 = input('X1= '); Y1 = input('Y1= ');
X2 = input('X2= '); Y2 = input('Y2= ');
dx = X2 - X1;
dy = Y2 - Y1;
if abs(dx) > abs(dy)
great_axis = dx;
less_axis = dy;
great = X1;
less = Y1;
else
great_axis = dy;
less_axis = dx;
great = Y1;
less = X1;
end
m = less_axis / great_axis;
er = m - 0.5 * sign(m);
hold on;
axis ([-100 100 -100 100]);
plot(-100:100,0,'b.');
plot(0,-100:100,'r.');
for i = 0 : abs(great_axis)
if abs(dx) > abs(dy)
plot (great, less,'g.');
x(i+1)=great; y(i+1)=less;
else
plot (less, great,'g.');
x(i+1)=less; y(i+1)=great;
end
e(i+1)=er ;
if sign(er) == sign(m)
less = less + sign(less_axis);
er = er - 1 * sign(m);
end
great = great + sign(great_axis);
er = er + m;
End
disp(' error x y ')
z=[e' x' y'];
disp (z)
hold off
{"html5":"htmlmixed","css":"css","javascript":"javascript","php":"php","python":"python","ruby":"ruby","lua":"text\/x-lua","bash":"text\/x-sh","go":"go","c":"text\/x-csrc","cpp":"text\/x-c++src","diff":"diff","latex":"stex","sql":"sql","xml":"xml","apl":"apl","asterisk":"asterisk","c_loadrunner":"text\/x-csrc","c_mac":"text\/x-csrc","coffeescript":"text\/x-coffeescript","csharp":"text\/x-csharp","d":"d","ecmascript":"javascript","erlang":"erlang","groovy":"text\/x-groovy","haskell":"text\/x-haskell","haxe":"text\/x-haxe","html4strict":"htmlmixed","java":"text\/x-java","java5":"text\/x-java","jquery":"javascript","mirc":"mirc","mysql":"sql","ocaml":"text\/x-ocaml","pascal":"text\/x-pascal","perl":"perl","perl6":"perl","plsql":"sql","properties":"text\/x-properties","q":"text\/x-q","scala":"scala","scheme":"text\/x-scheme","tcl":"text\/x-tcl","vb":"text\/x-vb","verilog":"text\/x-verilog","yaml":"text\/x-yaml","z80":"text\/x-z80"}