Dot product, complex numbers

1. Jun 24, 2012

robertjford80

1. The problem statement, all variables and given/known data

3. The attempt at a solution

do you see where it sees sqrt((1-i)(1+i)+9)?

It should be (1+i)(1+i)

Why isn't it?

2. Jun 24, 2012

tiny-tim

hi robertjford80!
the complex inner product is defined with a conjugate on one side …

<a|b> = a*.b

(for real vectors, it makes no difference, so this isn't a different definition, it's the same as for real vectors )

3. Jun 24, 2012

ok thanks.