I am trying to dissect an equation into its terms for statements such as "the first term in the denominator...". Optimally, I would like a list of terms, e.g.:
var('a b c x')
ex1 = a*x^2 + b/x - c
ex1.terms()
[a*x^2, b/x, c]
This used to be possible ages ago by just typing
ex1[0]
a*x^2
ex1[1]
b/x
etc.
Similarly, I would like to be able to extract the terms inside a log or exponent, nominator, denominator... Is there a structured way to do this?