I want to accomplish the following:
Mathematica syntax:
x=q[t];
z=1/2 *x^2;
x'=D[x,t];
z'=D[z,t];
D[z*z',x']
out: 1/2 q[t]^3
When I try this in sage :
t=variable('t')
x=function('q',t)
x_dot=diff(x,t)
z_dot=diff(z,t)
diff(z_dot *z,x_dot)
fails because x_dot is a derivative and not a symbol
Where in the documentation is this method covered?
Thanks
Scott
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