scalar ?

August 29, 2003, 06:43

Hi I have very basic question.I just have function say s(x,r,t). How will I know whether this quantity is scalar or vector or higher order tensor. Pr

August 31, 2003, 23:04

Nobody knows on earth if you don't know. s(x,r,t) would not be a TRUE function if it range space is not well defined.

September 1, 2003, 01:26

The classification is based on how the quantity transforms under a change of coordinates. If it is invariant then it is a scalar (strictly speaking) but sometimes people call any quantity which can be expressed by a single number as a scalar which is not correct usage.

August 29, 2003, 06:43	scalar ?	#1
pr Guest Posts: n/a	Hi I have very basic question.I just have function say s(x,r,t). How will I know whether this quantity is scalar or vector or higher order tensor. Pr

August 31, 2003, 23:04	Re: scalar ?	#2
Paul Guest Posts: n/a	Nobody knows on earth if you don't know. s(x,r,t) would not be a TRUE function if it range space is not well defined.

September 1, 2003, 01:26	Re: scalar ?	#3
Praveen Guest Posts: n/a	The classification is based on how the quantity transforms under a change of coordinates. If it is invariant then it is a scalar (strictly speaking) but sometimes people call any quantity which can be expressed by a single number as a scalar which is not correct usage.

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