Hi all,
I am switching from Maple slowly to Mathematica. Here is a PDE problem, which is sovable in Maple, but I can't seem to get it work in Mathematica. This is just a "small" example I took.
In my work sheet, I have attached the problematic PDE.
I am not sure whether it's the double subscripts that I have used, so I tried to change to a set of simpler variables.
For those who are instersted, I have also attached the "solution" from using Maple (PDF format).
FF = f[a, b, c, d]
eq1 = D[FF, d] + (1 - a)*D[FF, a]/d == 0
eq2 = D[FF, c] + (b - (a - 1)*d)*D[FF, a]/(c*d) == 0
eq3 = D[FF, b] + D[FF, a]/d == 0
DSolve[{eq1, eq2, eq3}, {FF}, {a, b, c, d}]
And I expect Mathematica to give something like a valid solution, such as (from Maple)
FF = (-b + (a - 1) d) c
Many thanks!
Attachments: