Help Newbie and Complex Numbers

On 4/11/2010 10:25:37 AM, stuartgregory wrote:
>Hi All
>
>I'm trying to write an
>equation where the
>co-efficient of the complex
>number 'i' is a variable.
>Tried
>
>(G2 + C1.i)
>
>
>But no joy - equally as bad
>is:
>
>
>(G2 - (C1 + C2)i)
>
>I don't want to keep changing
>the various coefficients
>manually and can't see any
>reason why it should be
>impossible for Mathcad to
>handle the general
>requirement.
>
>Any suggestions? Can you put
>me right? I have tried reading
>the manual and Googling the
>situation but all examples
>'convieniently' use numbers as
>the coefficient!
>
>Cheers
>James


Simply try
G2 + C1*1i
or
G2 - (C1 + C2)*1i

The "1" in front of the "i" tells Mathcad that its a number, not a variable. Wehn the regeions does not have the focus, the 1 its hidden for better display.

RMIx