Link to actual problem [4305] \[ \boxed {{y^{\prime }}^{4}+x y^{\prime }-3 y=0} \]
type detected by program
{"dAlembert"}
type detected by Maple
[[_1st_order, _with_linear_symmetries], _dAlembert]
Maple symgen result This shows Maple’s found \(\xi ,\eta \) and the corresponding canonical coordinates \(R,S\)\begin{align*} \left [\underline {\hspace {1.25 ex}}\xi &= \frac {3 x}{4}, \underline {\hspace {1.25 ex}}\eta &= y\right ] \\ \left [R &= \frac {y}{x^{\frac {4}{3}}}, S \left (R \right ) &= \frac {4 \ln \left (x \right )}{3}\right ] \\ \end{align*}