/sci/ - Science & Math » Thread #13654172

2MiB, 2000x3676, square root vector.jpg

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Anonymous Sat 18 Sep 00:22:50 2021 No.13654172 View Reply Original Report

Quoted By:

how can you take the square-root of a vector?

Anonymous

Anonymous Sat 18 Sep 2021 01:22:46 No.13654264 Report

Quoted By:

Are some of the r's and A's supposed to be scalar? If they're vectors what are the co/contravariant Adr/ds multiplicative terms?
How does the 2nd line =1?

Anonymous

Anonymous Sat 18 Sep 2021 02:57:58 No.13654380 Report

Quoted By:

What kind of a multiplication are you using?
You have to have a square before you can talk about a square root.

Anonymous

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Anonymous Sat 18 Sep 2021 12:16:53 No.13655091 Report

Quoted By:

think about a simple 2d vector in cartesian coordinates

we can represent it as a contravariant vector as in (1) or a covariant vector as in (2)

but what if we split it equally between the covariant and contravariant bases as in (3)?

is there any use for this in quantum physics or something?

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