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+2 votes

Hi! i would like to ask if there is anyway to implement exp(\Phi) where \Phi(x) is a scalar field in cadabra 2x and work with it. Is it the chain rule also available? thank you,


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Can you elaborate on what you mean with 'work with it'? What kind of thing would you like to do?

What I mean is if you define


and you apply the product_rule to it, an unexpected result appears:

\phi e**(\phi -1) \partial_{\mu}{e}.    

Im not sure if this is a bug or I am implementing in a wrong way the exponential function.

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