Results 1 to 8 of 8

6*Thanks*

- September 24th 2013, 12:05 PM #1

- Joined
- Nov 2012
- From
- 99
- Posts
- 30
- Thanks
- 1

- September 24th 2013, 12:23 PM #2

- September 24th 2013, 01:12 PM #3

- Joined
- Sep 2013
- From
- Toronto, ON
- Posts
- 29
- Thanks
- 14

## Re: Help me

Is this for a "several complex variables" class? I checked out the definition of modulus of u in C^3 (just let n=3 for your case):

where and is the usual modulus of a complex number

Just apply to your u-bar

- September 24th 2013, 02:06 PM #4

- September 24th 2013, 02:17 PM #5

- Joined
- Sep 2013
- From
- USA
- Posts
- 255
- Thanks
- 114

## Re: Help me

I read OP as a complex number problem and u is a vector. If i is a unit vector on the x-axis, the first component is 1 and one of the two other components must be either the unit vector j and k.

I read the components as (1 + 0i), (0 - 2i), (3 + 1i).

The moduli are: 1, 2, sqrt(10).

- September 24th 2013, 02:28 PM #6
## Re: Help me

- September 24th 2013, 03:07 PM #7

- Joined
- Sep 2013
- From
- Toronto, ON
- Posts
- 29
- Thanks
- 14

## Re: Help me

Here's where I got my point from:

http://www.dms.umontreal.ca/~gauthier/6140.pdf

Just saying. Don't need to reply to my post.

- September 25th 2013, 05:14 AM #8
## Re: Help me

Plato's point is that there is an ambiguity in the OP's question. His point is well taken...at first blush what the OP is asking is obvious, but as the problem makes no sense to ask. So questioning the OP is a natural step that needs to be taken. Continuing to make guesses at what soso123 was trying to ask is simply a waste of time and effort.

I'd say wait until soso123 comes back to clear this up. If (s)he doesn't then the problem gets dropped.

-Dan