That's good to know about Wald. I bought a copy to finally get my head round General Relativity, but its brief explanation of Special Relativity right at the start made it clear that I hadn't properly understood that, which led to me getting Gourgoulhon's book. I should be better placed to tackle it now.

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codethief 2 days ago | parent [-]

Weinberg ≠ Wald. Wald's book is great! (For GR, of course, not SR.)

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omnicognate 2 days ago | parent [-]

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 2 days ago \| parent [-]
		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.