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Jan26-04, 02:07 PM
lethe's Avatar
P: 657
Definition of a vector using transformations

Originally posted by beeftrax
Thank you very much for replying. I have a few more questions, if you don't mind.

1). What is ISO(3) exactly? Is it a combination of the rotation group and translation group for 3-space?
that is exactly what ISO(3) is.

2). Is Wrede mistaken in not referring to parity in his definition of vector, or what?
not mistaken. its just a matter of taste. vectors that transform nontrivially under parity are sometimes called pseudovectors, but if Wrede doesn t care so much about parity, its nothing to get upset over. its not always important.