9.11.3 Can you answer these questions?

9.11.3.1 Transform a continued fraction to an ordinary fraction
9.11.3.2 Why am I having issues working with large group multiplication tables?
9.11.3.3 Is there any documentation for vibration and solid mechanics research via Mathematica?
9.11.3.1 Transform a continued fraction to an ordinary fraction

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283023

I need to calculate (tranform to a 1-level fraction) the following continued fraction: 
... 
[simplifying-expressions] [continued-fractions]
 
asked by kekcikon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92079 Score of 1
9.11.3.2 Why am I having issues working with large group multiplication tables?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=282852

My mathematica running on Wolfram Cloud seems to break down if I use a SymmetricGroup greater than 6. As a basic example, when I run, 
... 
[wolfram-cloud] [scripting] [group-theory]
 
asked by nj869 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92028 Score of 1
9.11.3.3 Is there any documentation for vibration and solid mechanics research via Mathematica?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=283013

I am interested in the solid mechanics (elastic mechanics and structural mechanics, etc.), and vibration, is there any material or documentation in this aspect via FEM in Mathematica? 
[finite-element-method] [parametric-functions] [documentation] [solidmechanics]
 
asked by fhrl https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=87268 Score of 1