220 Reputation

2 years, 281 days

How to expand differential operator usin...

Maple 18

Dear all

I have an operator given below in the image. I want expand this operator upto order 5, when there are three independent variables x, y, t(i=1,2,3). The expansion can also be obtained manually, but that is always prone mistake, is the expansion posible using any routine of Differential Geometry package?

How to apply Homotopy operator for inver...

Maple 18

Suppose I have an expression like

Is it possible to reverse the divergence expression using homotopy operator to obtain Psi and Phi?

The above divergence expression is possible since Euler operator of the left side is zero.

Why the "pdsolve" of PDEtools package is...

Maple 18

I am trying to solve system linear partial differential equations using command "pdsolve". I am surprised to see that the solution given by this command is not satisfying the system, instead, an additional constraint is obtained for an arbitrary function, is there something about "pdsolve" I am missing?

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How I can find all Maxima and Minima fro...

Maple 18

Dear All

I have a trignometric function and I plotted it in 2D. It is visible from the graph that the function has Maxima and Minima. My question is, can I located all values

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of "x" corresponding to these Max. and Min. ?

How to use differetial operator two time...

Maple 18

Dear All

I am trying to use differential operator two times in sucession but I am not getting desired differentiation. Please see content below:

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Why this is giving zero result ?

If I change to jet notation then I get result non zero result like:

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I was expecting this to be but instead I am getting zero result.