Input:
pdsolve(ds(y,t,2)-ds(y,x,2)-ds(y,x)-exp(t)-exp(x))
Write:
`pdsolve(ds(y,t,2)-ds(y,x,2)-ds(y,x)-exp(t)-exp(x))`
Compute:
$$pdsolve(\frac{d^{{2}}y}{dt^{{2}}} - \frac{d^{{2}}y}{dx^{{2}}} - \frac{dy}{dx} - exp(t) - exp(x))$$
Output:
$$pdsolve(\frac{d^{{2}}y}{dt^{{2}}} - \frac{d^{{2}}y}{dx^{{2}}} - \frac{dy}{dx} - exp(t) - exp(x))== C_1+exp(t)+psolution(-1,2,-1,1,0,-exp(x),y,t,x,x,2)+C_2\ ({t}^{2}+x+\frac{1}{2}\ {x}^{2})$$
Result: $$C_1+exp(t)+psolution(-1,2,-1,1,0,-exp(x),y,t,x,x,2)+C_2\ ({t}^{2}+x+\frac{1}{2}\ {x}^{2})$$
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