# How to find the normal form of an elliptic curve using Sage?

Let $C$ be the following curve in $\mathbb{C}^2$. \begin{align} & 11664 {c_1}^3 {c_2}^2 + 536544 {c_1}^3 c_2 + 6170256 {c_1}^3 + 67068 {c_1}^2 {c_2}^2 + 1542564 {c_1}^2 c_2 \ & + 3085128 c_1 {c_2}^2 - 32393844 c_1 c_2 + 3085128 c_1 + 17739486 {c_2}^2 + 6941538 c_2 = 0. \end{align} I checked that this curve has genus $1$ using Sage. Therefore it is an elliptic curve. How to change coordinates such that the equation of this curve is of the form $y^2 = f(x)$, where $f$ is some polynomial. Thank you very much.

I tried to use the following codes in Sage.

R.<c1,c2> = QQ[]; Jacobian(11664*c1^3*c2^2 + 536544*c1^3*c2 + 6170256*c1^3 + 67068*c1^2*c2^2 + 1542564*c1^2*c2 + 3085128*c1*c2^2 - 32393844*c1*c2 + 3085128*c1 + 17739486*c2^2 + 6941538*c2)

But there is an error: NoEmbeddingError: not a sub-polytope of a reflexive polygon. How to find the normal form of the curve using Sage? Thank you very much.

The code posted should be indented in order to prevent

`*`

from being interpreted a markdown formatting. But if I fix the multiplications then I get the same exception. I have no idea what it means in this case though.