how to get cartesian equation from parametric equation

i have x= 10*t^2 and y=2*t^2 (parametric equation)

how can i make matlab program that get the cartesian equation ( x=5*y ) ?

[darova]

What about this?

t = 0:0.1:3;
x = 10*t.^2;
y = ...
plot(x,y)

[david carlson]

thanks , btw i wanted the cartesian equation not the plot

[darova]

It's impossible

Answer 1

[Tommy]

Maybe something like this?

syms t x y
eqns = [x == 10*t^2; y == 2*t^2];
out = subs(eqns(2), t, rhs(isolate(eqns(1), t)));

which results in:

>> out
 
out =
 
y == x/5