clc;
clear;
hold on;
axis([-100,100,-100,100]);
plot(-100:100,0,'r.');
plot(0,-100:100,'b.');
x1=input('X1= ');
y1=input('Y1= ');
x2=input('X2= ');
y2=input('Y2= ');
dx=x2-x1;
dy=y2-y1;
if (dx==0 && dy~=0)
x=x1;
y=y1:sign(dy):y2;
plot(x,y,'g.');
elseif (dx~=0 && dy==0)
y=y1;
x=x1:sign(dx):x2;
plot(x,y,'g.');
elseif abs(dy/dx)==1
x=x1:sign(dx):x2;
y=y1:sign(dy):y2;
plot(x,y,'g.');
else
msgbox 'Not Standard Line';
end
{"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"}
