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exercise
2004 Apr 15
5
Solving Matrices
On April 15th, Elizabeth wrote:
<snip>
> In execises 39-42, determine if the columns of the matrix span
> R4:
<snip>
>(or x <- matrix(data=c(7, -5, 6, -7, 2, -3, 10, 9, -5,
> 4, -2, 2, 8, -9, 7, 15), nrow=4, ncol=4)
>
>That is the whole of the question <snip>
Have you tried det(x) and/or eig...
2004 Sep 29
0
How to assign a change file permission
Dear ALL : I'm a school system administrator , I want use samba to create a share for students can submit their execise or exam file, after the submition, student cannot change/delete file, but UNIX only provide write and read file permissions , how to config the SAMBA to doing this function.
THANKS
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