Hi, Maple has a really useful feature of inert integrals and derivatives. Basically, the integrals and derivatives show up in the equations, but aren't evaluated until a command to evaluate them is explicitly given. So, you can delay the evaluation until after you've processed the expression to the point where it can be evaluated.
This feature comes in very handy during complicated derivations because you can see which terms are integrals or derivatives and manipulate them along side non-integrals/derivatives. Is there a way to do this in Sage? Thanks, Tim.
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