I think I know that the “a” in the retired “agraph” library stood for abstract, but I don’t know what the “c” in “cgraph” stands for. The “C” programming language? Just a letter after “a” in the alphabet? Was there ever a “bgraph” library?
TIL the ‘a’ stands for abstract, thanks 
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If the “a” stands for “abstract,” the “c” obviously stands for “concrete” 
I actually have no idea what either stand for.
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TIL what TIL means.
If there is a pop test (or a pop-culture test) I’m closer to ready.
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Almost LMAOROTFBTCSTCNDBFOOTWIFOAGWLLBGWTHROOTSAIAKBAYB
I was there and I don’t remember. Stephen will be the only hope for a definitive answer. That said, there was definitely an agraph, I vaguely recall a temporary bgraph, but that’s probably my imagination, until cgraph was settled on. None of these was particularly more abstract than the original graph library; they just tended to provide more flexibility to the user and more elegant functions.
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Right. (Post must be at least 10 characters.)
A = Attributed graphs
B = I forget now
C = graphs in C
They were just useful names.
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