Input:
pdsolve(ds(y,t)=ints(y,x)-y-exp(x))
Write:
pdsolve(ds(y,t)=ints(y,x)-y-exp(x))
Output:
pdsolve(\frac{dy}{dt} =\int y\ dx - y - exp(x))== exp(x)-t
(d^1.6y)/(dx^1.6)-(d^0.8y)/dx^0.8-y-exp(x)=0
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