Re: Name and symbol to denote number of elements in a Vector?
- From: lrudolph@xxxxxxxxx (Lee Rudolph)
- Date: 17 Nov 2005 07:31:25 -0500
lex loi <none@xxxxxxxxxxx> writes:
>What is the terminology and symbol to denote how many elements a Vector has?
>Example: a = (1,3,6,8).
>a has 4 elements. Do I say it is a 4-vector?
That's very standard usage.
>Or 'of order 4'?
I don't think I've seen that. If you define what you mean by
"of order n", then of course you can use the phrase with that
meaning thereafter; but I wouldn't advise you (in this case)
to use the phrase without defining it explicitly.
>Also, I need to symbol to mathematically denote how many elements it has.
>E.g. ||a|| = 4 (although || a || is usually used for magnitude of a
>vector so isn't appropriate as the symbol)
If there is a standard symbolic way to convey this meaning, it is
standard in areas I've never seen. Again, you should feel free to
define a notation, then use it.
Lee Rudolph
.
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