Relativistic Twins - Page 2

davar55 · 2013-10-09, 20:33

Quote:

Originally Posted by chalsall

Please explain a tensor.

It's more complicated than a matrix.

First you please explain a scalar, so we're on the same page.
(Else there's no point.)

chalsall · 2013-10-09, 20:39

Quote:

Originally Posted by davar55

It's more complicated than a matrix.

No shit, Sherlock.

Quote:

Originally Posted by davar55

First you please explain a scalar, so we're on the same page.

I find no reasons I need to meet your demands.

Deal with it.

davar55 · 2013-10-09, 20:45

OK. Dealt.

chalsall · 2013-10-09, 20:59

Quote:

Originally Posted by davar55

OK. Dealt.

Namaste.

davar55 · 2013-10-10, 13:21

Math quiz: Which of the following is
the odd man out, so to speak?

(a) scalar
(b) vector
(c) matrix
(d) monoid
(e) tensor

xilman · 2013-10-10, 15:19

Quote:

Originally Posted by davar55

Math quiz: Which of the following is
the odd man out, so to speak?

(a) scalar
(b) vector
(c) matrix
(d) monoid
(e) tensor

f. All of the above.

retina · 2013-10-10, 15:28

Quote:

Originally Posted by davar55

Math quiz: Which of the following is
the odd man out, so to speak?

(a) scalar
(b) vector
(c) matrix
(d) monoid
(e) tensor

(d) It doesn't have the letter 'r'.

Mini-Geek · 2013-10-10, 15:56

Quote:

Originally Posted by davar55

Math quiz: Which of the following is
the odd man out, so to speak?

(a) scalar
(b) vector
(c) matrix
(d) monoid
(e) tensor

(d) due to this quote from MathWorld: "Objects that transform like zeroth-rank tensors are called scalars, those that transform like first-rank tensors are called vectors, and those that transform like second-rank tensors are called matrices." So those are all closely related; monoid is something else entirely.

LaurV · 2013-10-10, 16:15

Quote:

Originally Posted by retina

(d) It doesn't have the letter 'r'.

hahaha, genial!

davar55 · 2013-10-10, 16:39

We know questions of this kind are ambiguously answerable,
and I was hoping each choice a-e (and Xilman's f) would
get at least one humourous explanation. I'm partial to
the exclude-monoid definitional answer, since a monoid is
something else (a class in Algebra, like groups and rings).

only_human · 2013-10-10, 16:57

Quote:

Originally Posted by davar55

Math quiz: Which of the following is
the odd man out, so to speak?

(a) scalar
(b) vector
(c) matrix
(d) monoid
(e) tensor

Quote:

Originally Posted by davar55

We know questions of this kind are ambiguously answerable,
and I was hoping each choice a-e (and Xilman's f) would
get at least one humourous explanation.

A scalar keeps track of how many fish I eat and also makes sure that their skins are nice. These fish travel along a vector (one of many) that involve probabilities and amplitudes. When I have problems, my GI doctor enters the matrix looking for monoids and I get tensor. Having a monoid probably means I shouldn't kiss him but what is appropriate? So I guess monoids are the odd man out of that procedure.

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2013-10-09, 20:45	#14
davar55 May 2004 New York City 5·7·11² Posts	OK. Dealt.

2013-10-10, 13:21	#16
davar55 May 2004 New York City 5×7×11² Posts	Math quiz: Which of the following is the odd man out, so to speak? (a) scalar (b) vector (c) matrix (d) monoid (e) tensor

2013-10-10, 16:39	#21
davar55 May 2004 New York City 5×7×11² Posts	We know questions of this kind are ambiguously answerable, and I was hoping each choice a-e (and Xilman's f) would get at least one humourous explanation. I'm partial to the exclude-monoid definitional answer, since a monoid is something else (a class in Algebra, like groups and rings).