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Anonymous Tue Jan 31 15:17:21 2012 No.4315185 [Reply] [Original]

Quick question, got a book from my dad (University Physics by Benson) and encountering notation I didn't learn in school. What's | | mean?

Like |dv| = (v/r)|dr|? (Circular motion)

Or is it just something you stick around delta X to make it look neater?

>>	Anonymous Tue Jan 31 15:18:35 2012 No.4315194 You have to be kidding me. Just in case you aren't a troll it is an absolute value.

>>	Anonymous Tue Jan 31 15:19:43 2012 No.4315198 >>4315194 Thanks, and no not kidding. Not once seen it in my life and I did go through HS

>>	Anonymous Tue Jan 31 15:21:51 2012 No.4315203 You know what an absolute value is right?

>>	Anonymous Tue Jan 31 15:21:51 2012 No.4315206 >>4315203 I'm reading wikipedia as we speak

>>	Anonymous Tue Jan 31 15:25:23 2012 No.4315225 >>4315206 After a quick glance I gather that in this context it just means dv but always positive? So if v2-v1 = -x, the absolute value will be x?

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