[vox] OT: matrix operations

Henry House hajhouse at houseag.com
Tue Feb 20 07:57:29 PST 2007


I know about these defined arithmetic operations on vectors: vector addition, scalar mutiplication, and vector multiplication.

[1 2]   [4 3]   [5 4]
[3 4] + [1 2] = [4 6]

[1 2]           [2 4]
[3 4] * 2     = [6 8]

[1 2]   [2 2 2]   [ 6  6  6]
[3 4] * [2 2 2] = [14 14 14]

Why does one never hear about a scalar addition operation? It would
make sense to me to define the following:

[1 2]       [3 4]
[3 4] + 2 = [5 6]

Similarly, why is there no scalar exponentiation on vectors?

-- 
Henry House
+1 530 753 3361 ext. 13
Please don't send me HTML mail! My mail system frequently rejects it.
The unintelligible text that may follow is a digital signature.
See <http://hajhouse.org/pgp> to find out how to use it.
My OpenPGP key: <http://hajhouse.org/hajhouse.asc>.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://lists.lugod.org/pipermail/vox/attachments/20070220/1a3623eb/attachment.pgp


More information about the vox mailing list