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:
$$pdsolve(\frac{d^{{2}}y}{dt^{{2}}} - \frac{d^{{2}}y}{dx^{{2}}} - \frac{dy}{dx} - exp(t) - exp(x))== pdsolve(-\frac{d}{dx} y(x)-\frac{d^{{2.0}}y(x)}{dx^{{2.0}}}-exp(t)-exp(x),y)$$
Result: