Re: [sage-edu] Power Regression question

[MišoLietavec]

I think, the elementary knowledge of complex numbers can help more than
cloud...


2014-03-03 2:28 GMT+01:00 Jorge Garcia :

> Thanx for your help!
>
> I was able to solve 16*x^1.9==100 for 18 complex roots and 1 real root in
> a reasonable amount of time:
>
> http://sagecell.sagemath.org/?z=eJzLsS3OzylL1TA006qIM9SztLU1NDDQqdDk5SrOyC_XyEnN08jRhPOiIXxdw1i9ooxiDU29PA1NTQCeixNX&lang=sage
>
> I had to go to the cloud server to solve 16.0*x^1.99 getting 196 complex
> roots and 1 real!
>
> Thanx,
> A. Jorge Garcia
>
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Re: [sage-edu] Power Regression question

[A. Jorge Garcia]

Is there a solver in SAGE that only outputs real roots?

Sincerely,
A. Jorge Garcia
Applied Math, Physics & CS
http://shadowfaxrant.blogspot.com
http://www.youtube.com/calcpage2009
2013 NYS Secondary Math http://PAEMST.org Nominee


-Original Message-
From: MišoLietavec 
To: sage-edu 
Sent: Mon, Mar 3, 2014 6:44 am
Subject: Re: [sage-edu] Power Regression question

I think, the elementary knowledge of complex numbers can help more than 
cloud...




2014-03-03 2:28 GMT+01:00 Jorge Garcia :
Thanx for your help!


I was able to solve 16*x^1.9==100 for 18 complex roots and 1 real root 
in a reasonable amount of 
time:http://sagecell.sagemath.org/?z=eJzLsS3OzylL1TA006qIM9SztLU1NDDQqdDk

5SrOyC_XyEnN08jRhPOiIXxdw1i9ooxiDU29PA1NTQCeixNX&lang=sage


I had to go to the cloud server to solve 16.0*x^1.99 getting 196 
complex roots and 1 real!




Thanx,
A. Jorge Garcia


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