Sqrt of -1

[N€o]

Is this possible in VB?
I know how to work with complex numbers (adding, subtraction, division, multiply) in borland c++, but in vb?

[jim mcnamara]

You have to represent complex numbers with a UDT like

Type Complex
        r as Single
        imag as Single
End Type
Dim Im as Complex

Then you have to do all the math in functions that you write yourself.

Function ComplexAdd(a as Complex,b as Complex) as Complex
     Dim tmp as Complex
     tmp.r = a.r + b.r
     tmp.imag = a.imag + b.imag
     ComplexAdd = tmp
End Function

[N€o]

thnx men, it look alot like C++. I thought it was more difficult then that!