Input:
pdsolve(ds(y,t,2)=2ds(y,x,2)-y^2-2x*y-x^2)
Write:
`pdsolve(ds(y,t,2)=2ds(y,x,2)-y^2-2x*y-x^2)`
Compute:
$$pdsolve(\frac{d^{{2}}y}{dt^{{2}}}=2\ \frac{d^{{2}}y}{dx^{{2}}} - {y}^{2} - 2\ x\ y - {x}^{2})$$
Output:
$$pdsolve(\frac{d^{{2}}y}{dt^{{2}}}=2\ \frac{d^{{2}}y}{dx^{{2}}} - {y}^{2} - 2\ x\ y - {x}^{2})== 6\ weierstrassP(C_1+t+x,0,C_2)-x$$
Result: $$6\ weierstrassP(C_1+t+x,0,C_2)-x$$
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