Projectile motion plot angle not working on graph

    g = 9.8;
    x0 = 0;
    t = 0:.01:15;
    
    
    Vo = 'What is the Initial Velocity? ';
    Vo = input(Vo);
    
    Theta = 'What is the Angle? ';
    Theta = input(Theta);
 
    y0 = 'What is the Initial Y position? ';
    y0 = input(y0);
   
    x = x0+Vo*cosd(Theta)*t;
    y = y0+Vo*sind(Theta)*t-(g*t.^2)/2;
    
    plot (x,y, 'Linewidth', 3)

I am seeking help once again since I am still confused. My graph is flat, no matter what angle I enter. My graph also starts at a negative number, and I want it to start at 0, but dont know how. Does anyone know how to fix this?

Answer 1

[Star Strider]

Your code works when I run it with:

    Vo = 100;
    Theta = 45;
    y0 = 0;

Answer 2

[Image Analyst]

For what it's worth, I'm attaching my projectile demo where it computes and plots practically everything you could ever want to know about a projectile.