how to get cartesian equation from parametric equation

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david carlson 2020-5-26

回答： Tommy 2020-5-27

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 ) ?

david carlson 2020-5-27

thanks , btw i wanted the cartesian equation not the plot

darova 2020-5-27

It's impossible

Tommy 2020-5-27

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

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