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Question: How to revert ("unapply") a function composition application

Question:How to revert ("unapply") a function composition application

C_R 3999 Maple
composition unapply
16 minutes ago
0

How to revert ("unapply") a function composition application?
Example:

`@`(ln, sinh)

`@`(ln, sinh)

 (1)

apply(`@`(ln, sinh), x)

ln(sinh(x))

 (2)

Unapply does not do the opposite of what apply does

unapply(ln(sinh(x)), x)

proc (x) options operator, arrow; ln(sinh(x)) end proc

 (3)

What I am instered in: revert/undo the apply operation leading to(2) and returning the corresponding function composition of (1).

Maybe there is a convert function that I have overlooked.

NULL


 

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