On Thursday 01 February 2007 20:35, Paul Anderson wrote: > It has to do with the impedance of the circuit, and it's always of > the form x+jy or x-jy. Like 20+j10 or 20-j10. Is it reference to a > complex number? Any help is greatly appreciated. yes it is... the imaginary portion of the impedance is affected by capacitance and inductance.. cheers.. -- with metta, Shawn Tan -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist