I have some difficulties in my little example:
... after few transformations ...
also we have:
How can I convert Iex/Itr to r? (and than 1+2*r to d)
subs generate something wierd, algsubs gives error:
Error, (in algsubs) no variables appearing rationally in pattern
and other cool functions don't give any result.
Why? Why? Give me good advice, please