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Re: [Phys-L] emended puzzle about vectors (and the structure of the world)
From
: John Denker <
jsd@av8n.com
>
Date
: Wed, 4 May 2022 11:59:21 -0700
Alas on 5/4/22 11:32 AM, I wrote:
A·B = (1/4) [ (A+B)² + (A−B)² ]
That's supposed to be
A·B = (1/4) [ (A+B)² − (A−B)² ]
with a minus sign in the middle.
Sorry for the confusion.
h/t Jeffrey Marx
References
:
[Phys-L] puzzle about vectors (and the structure of the world)
From:
John Denker <jsd@av8n.com>
[Phys-L] emended puzzle about vectors (and the structure of the world)
From:
John Denker <jsd@av8n.com>
Re: [Phys-L] emended puzzle about vectors (and the structure of the world)
From:
Chuck Britton <britton@ncssm.edu>
Re: [Phys-L] emended puzzle about vectors (and the structure of the world)
From:
John Denker <jsd@av8n.com>
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