Problem with if statement within a while loop

Hi everyone,

I'm trying to make a 3D golf simulator but for some reason, I can't get the programme to tell me when the ball is in the hole, the if statement just doesn't seem to be working. I'd be very thankful if anyone could spot what's wrong with my code.

 hx=250.*rand(1)
 hy=250.*rand(1)
 hz=0;
 hr=0.0; 

 while (vx0*tf)<(hx-hr)||(hx+hr)<(vx0*tf)||(vy0*tf)<(hy-hr)||(hy+hr)<(vy0*tf)

     v0= input('What is the new velocity?');
  theta= input('What is the new swivel angle?');
  sigma= input('What is the new tilt angle?'); 
  %asks the user to input new values of speed and angle 

endx=sx(1,end);
endy=sy(1,end);
%defines the displacement up to this point

vx0= v0*cos(theta)*cos(sigma);
vy0= v0*cos(sigma)*sin(theta);
vz0= v0*sin(sigma);
%calculates the x,y and z components of the initial velocity 

az= -9.807;
%acceleration due to gravity
tf=2*v0*sin(sigma)/(-az);
%calculates the amount of time(tf) it takes for the ball to reach the
%ground.

t= 0: 0.01 : tf;
%defines the time interval as being between zero and the time the golf ball
%reaches the ground.

sx= vx0*t+endx;
sy= vy0*t+endy;
sz= vz0*t + 0.5*az*t.^2;
%formulas respectively calculate the x,y and z components of the
%displacement.

if (hx+hr)<(vx0*tf)&&(vx0*tf)<(hx-hr)&&(hy+hr)<(vy0*tf)&&(vy0*tf)<(hy-hr)
  disp('Great Success!')
  break
end

plot3(sx,sy,sz,'r:','Linewidth',4); hold on end

[James Tursa]

If any of your variables are vectors, the if-test is likely not doing what you expect. If that is the case, make sure you are doing scalar comparisons to get the expected result.

[JulyRaynes]

Fixed the issue