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Re: Electrical Power Systems

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64037] Re: [mg64018] Electrical Power Systems
  • From: "Carl K. Woll" <carlw at wolfram.com>
  • Date: Sat, 28 Jan 2006 02:23:58 -0500 (EST)
  • References: <200601271013.FAA19058@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

mibelair at hotmail.com wrote:
> Dear group,
> I am running Mathematica 5.2 and I would like to find a package to
> operate with exponential expresions and numerical values for Electrical
> Power Systems.
> 
> For example,
> 220 E^(Pi/2)+220 E^(5 Pi/6) yields 380 E^(2 Pi/3)

I think you forgot to include I in your exponentials. At any rate, if 
you want to convert expressions to polar form, you can try:

toPolarForm[z_]:=Abs[z]Exp[I Arg[z]]

Then, for your example we have:

In[30]:=
toPolarForm[220Exp[I Pi/2]+220Exp[5I Pi/6]]//OutputForm

Out[30]//OutputForm=
              (2 I)/3 Pi
220 Sqrt[3] E

Carl Woll
Wolfram Research


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