Input:
pdsolve(ds(y,t)--y*(ds(y,x)--ds(y,u)--ds(y,v))=f)
Write:
`pdsolve(ds(y,t)--y*(ds(y,x)--ds(y,u)--ds(y,v))=f)`
Compute:
$$pdsolve(\frac{dy}{dt} +y\ (\frac{dy}{dx} +\frac{dy}{du} +\frac{dy}{dv} )=f)$$
Output:
$$pdsolve(\frac{dy}{dt} +y\ (\frac{dy}{dx} +\frac{dy}{du} +\frac{dy}{dv} )=f)== C_1-f\ (t+u+v+x)+y+\frac{3}{2}\ {y}^{2}=0$$
Result: $$C_1-f\ (t+u+v+x)+y+\frac{3}{2}\ {y}^{2}=0$$
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