Comment by codethief 3 days ago Weinberg ≠ Wald. Wald's book is great! (For GR, of course, not SR.) 2 comments codethief Reply omnicognate 3 days ago Indeed! I meant that it's good to know Wald is mathematically modern and not encrusted with coordinates. Saves me buying another book :-D(The comment I replied to mentioned both.) senderista 3 days ago I think it does a very good job of explaining the abstract index notation, which is superficially similar to coordinate notation but conceptually quite different.
omnicognate 3 days ago Indeed! I meant that it's good to know Wald is mathematically modern and not encrusted with coordinates. Saves me buying another book :-D(The comment I replied to mentioned both.) senderista 3 days ago I think it does a very good job of explaining the abstract index notation, which is superficially similar to coordinate notation but conceptually quite different.
senderista 3 days ago I think it does a very good job of explaining the abstract index notation, which is superficially similar to coordinate notation but conceptually quite different.
Indeed! I meant that it's good to know Wald is mathematically modern and not encrusted with coordinates. Saves me buying another book :-D
(The comment I replied to mentioned both.)
I think it does a very good job of explaining the abstract index notation, which is superficially similar to coordinate notation but conceptually quite different.