How to take time derivatives of a function?

My objective is to take the first and second time derivatives of my function for displacement 'x'. I have it modelling a function of displacement over angle with respect to time. Does MATLAB have a function that represents dx/dt? Here are the analytical solutions and my code for reference.

h = 60 ; 
b =130 ; 
r = 28 ; 
w = 2*pi; % angular velocity

t =0:(1/36):1 ; 
x = b*(r*sin(w*t))./(h-r*cos(w*t));

Answer 1

[KSSV]

dxdt = diff(x)./diff(t) ;   % derivative of x w.r.t t

[Christian Aranas]

Thank you! are there any specific rules when trying to plot derivatives of functions? I want to plot it with respect to the time instead of iterations, but plot(v,t) does not work. Here is my code

 v = diff(x)./diff(t) ;   % derivative of x w.r.t t
 plot(v,t);

[KSSV]

When we use diff the dimension of vector will be reduced by one. Two options to plot.

   v = diff(x)./diff(t) ;   % derivative of x w.r.t t
   plot(v,t(1:end-1));

OR

 v = gradient(x)./gradient(t) ;   % derivative of x w.r.t t
 plot(v,t);

[Roger Bijlani]

Thank you for this answer! All the examples online just show symbolic integration!