## Sums of sums visually and as nested “for” loops

In Concrete Mathematics (Graham, Patashnik, Knuth) I am working my way through page 36 about sums of sums. Specifically the “rocky road” (yum) method for sw...

In Concrete Mathematics (Graham, Patashnik, Knuth) I am working my way through page 36 about sums of sums. Specifically the “rocky road” (yum) method for sw...

The solution I found to my particular case of “Error: Unreadable module directory” when using Terragrunt.

This concerns the paragraph just before equation 2.9. I will quote it here

As with most of my posts on Concrete Mathematics this is a more verbose outline of the repertoire method in section 2.2. It explains how to find the closed f...

This post expands, in terms of verbosity, what is presented in equation 1.3 where they say