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This question is Not Answered
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Young
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73623
Sun, 13 Feb 05 08:42 AM
Hi,
I am always confused with article usage.
Please tell me which sentence is correct and the reason for that.
- A' means the transpose of matrix A.
- A' means the transpose of a matrix A.
- A' means the transpose of the matrix A.
Here is another one.
a = b + c (1)
- We realize that .... in formula (1).
- We realize that .... in the formula (1)
Thanks in advance
Joined on
Sun, Feb 13 2005
New Member
02
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Casi
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73638
Sun, 13 Feb 05 11:15 AM
of matrix A (matrix A is know; the one in the diagram below/above)
of a matrix A. (any given matrix A)
of the matrix A on the right. (specific; e.g., the one on the right, not the left)
We realize that . . . in formula (1). (formula (1) is know)
By the way, shouldn't A' means the transpose of matrix A be expresses as A' is matrix A transposed?
Joined on
Sat, Sep 25 2004
Regular Member
547
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Mister Micawber
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73665
Sun, 13 Feb 05 01:57 PM
That's what I thought too, Casi, till I found this:
'Transpose (noun): a matrix formed by interchanging the rows and columns of a given matrix.'
Joined on
Wed, Aug 4 2004
Yokohama
Veteran Member
30,802
'The question is,' said Humpty Dumpty, 'which is to be master-- that's all.'
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Casi,
4 yr 284 days ago
Aha! So it's true: you can teach an old dog new tricks after all.
Thanks, MM.
SMILES
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Young
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73750
Mon, 14 Feb 05 01:40 AM
Thanks for your explanation.
However, I can't understand the difference between "matrix A" and "the matrix A".
Are both "the one in the diagram" and "the one on the right" specific ?
How can I distinguish them?
Thanks
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Mister Micawber
+
73802
Mon, 14 Feb 05 09:35 AM
I think Casi is explaining that 'matrix A' is easily identified visually, so that the definite article is not required, where 'the matrix A' refers-- grammatically-- back to a specific or previously-mentioned matrix A-- or perhaps 'the matrix A (which we have just constructed)', for example.
'A' itself identifies the matrix -- it is its name, so to speak--, so that 'the' is not mandatory as it would be with, for instance 'dog' and 'the dog' in cases of specificity; for clarity, however, it might be felt needed.
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