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))== C_1\ exp((\frac{-1}{2})\ t+2.0\ x)-exp(x)\ x
y*(d^3y)/dx^3-6x^3-4x^2-4x-1=0
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