Revision as of 08:18, 5 September 2008 by Nbrowdue (Talk)

Using your Imagination is Cool

-Wait a minute--they give phasers to math guys? Is that safe? And where can I get one?

Definition (from Wiki)

In engineering, the complex numbers are an extension of the real numbers obtained by adjoining an imaginary unit, denoted j, which satisfies:

   j^2=-1

Phasors

There are 3 forms:

1. M*exp(j*φ) <--Exponential Form

2. A+j*B <--Phasor Form

3. M∠φ° <--Polar Form

To get from one to another, observe:


   M = sqrt{A^2 + B^2}
   φ = arctan(B/A)


To convert from polar to rectangular form:

A lies upon the real axis

   A = Mcosφ

B lies on the imaginary axis

   B = Msinφ

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Mu Qiao