Ask Your Question

Revision history [back]

Extracting numerator of a Ricci tensor component


I'm solving Einstein equation in vacuum. I already computed the Ricci tensor. For example, de first Ricci component is saved in the following variable eq1:


The denominator of the component should vanish since since the other part of the equation is zero. How can I extract numerator of the expression. I have tried:


But it does not work. Thanks