# Functions source code

I am currently engaged in the study of graph theory for my master's thesis. For my work, I need to use the functions `is_isomorphic`

and `is_subgraph`

. I want to gain a deeper understanding of the underlying code for these two functions.

However, when I attempt to access the documentation using the `search_src()`

function, I receive the following warning message: "Warning: the Sage documentation is not available".

Could you kindly guide me to where I can find the source code of these functions?

I appreciate your assistance in advance.

Best regards.

How did you install Sage ? And on which platform ?

Alternative to try: