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Re: symbolic pkg vpa multiplication.


From: Sergei Steshenko
Subject: Re: symbolic pkg vpa multiplication.
Date: Fri, 6 Mar 2015 12:37:44 +0000 (UTC)




>________________________________
> From: Doug Stewart <address@hidden>
>To: address@hidden 
>Sent: Friday, March 6, 2015 5:55 AM
>Subject: symbolic pkg vpa multiplication.
> 
>
>
>x = vpa(".13435729182736455362791827111111111111111111762534+3j", 72) 
>y = vpa(".13333333333333336666666666667+.0222222244444444j",72)
>
>q=x*y
>result is
>
>
>q = (sym)
>
>
>  (0.133333333333333359238537241253652609884738922119140625 +
>   0.02222222444444440017652375729539926396682858467102050781
>  25⋅ⅈ)⋅(0.13435729182736455555868815281428396701812744140625
>   + 3.0⋅ⅈ)
>
>
>
>
>But I want the math to be done and have just  a real and imaginary result.
>how to do it???
>Doug-- 
>
>DAS
>
>


According to my experience with other CAS some kind of 'eval' command needs to 
be invoked.

Regards,
  Sergei.


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