I know what the equation for proper time is in basic Euclaiden space. But when space-time is concerned, I get a bit confused.(adsbygoogle = window.adsbygoogle || []).push({});

The equation is: [tex]\Delta\tau=\sqrt{g_{\mu\nu}dx^{\mu}dx^{\nu}}[/tex]

I realise that [tex]g_{\mu\nu}[/tex] is the Metric tensor. However i dont understand the dx's and their indices.

Would someone be able to explain these features to me?

Thanks,

Ben.

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# Proper Time

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