Laplace of the differential of another variable in sage

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Yeah, it can account for such a result. I think maybe there is something in maxima to be improved. Thank you!

But, as I run in Maxima:laplace(diff(f(x,t),x),t,s),it seems to output the correct answer:'diff('laplace(f(x,t),t,s),x,1). Thus there might be something wrong in sage.

Good catch. I'll work on submitting a ticket on this.

All right:)

@calc314 - Please cc: me if you do get the ticket open. The formal derivative stuff still needs some better integration with Maxima - no pun intended.

Sorry, I did not ask for permission from my professor before posting it. He told me the code still needs some work. He will contribute it to Sage as a contributor himself when it works reasonably well.

That would be awesome. Please keep us informed, and if he does post some code, put the ticket number here as well for other people who find this question.

All right