LFD Book Forum Q1: clarification on the meaning of polynomial transform of order Q
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#1
03-08-2013, 06:26 PM
 boulis Member Join Date: Feb 2013 Location: Sydney, Australia Posts: 29
Q1: clarification on the meaning of polynomial transform of order Q

Just making sure:
A non linear transform that is polynomial of order Q looks like this:
Q=1
Q=2
Q=3
#2
03-08-2013, 06:29 PM
 palmipede Member Join Date: Jan 2013 Posts: 13
Re: Q1: clarification on the meaning of polynomial transform of order Q

Maybe this is the same question?

Is the answer to question 1 supposed to be exact or approximate?

Thank you for your help!
#3
03-08-2013, 07:20 PM
 yaser Caltech Join Date: Aug 2009 Location: Pasadena, California, USA Posts: 1,478
Re: Q1: clarification on the meaning of polynomial transform of order Q

Quote:
 Originally Posted by boulis Just making sure: A non linear transform that is polynomial of order Q looks like this: Q=1 Q=2 Q=3
Correct.

Remember that the problem states that the constant (zeroth) coordinate in not counted in the dimensionality.
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#4
03-08-2013, 07:21 PM
 yaser Caltech Join Date: Aug 2009 Location: Pasadena, California, USA Posts: 1,478
Re: Q1: clarification on the meaning of polynomial transform of order Q

Quote:
 Originally Posted by palmipede Is the answer to question 1 supposed to be exact or approximate?
Exact.
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#5
03-08-2013, 08:10 PM
 gah44 Invited Guest Join Date: Jul 2012 Location: Seattle, WA Posts: 153
Re: Q1: clarification on the meaning of polynomial transform of order Q

Quote:
 Originally Posted by yaser Exact.
So many "nearest" answers that we forget after a while what "exact" means.
#6
03-08-2013, 08:22 PM
 yaser Caltech Join Date: Aug 2009 Location: Pasadena, California, USA Posts: 1,478
Re: Q1: clarification on the meaning of polynomial transform of order Q

Quote:
 Originally Posted by gah44 So many "nearest" answers that we forget after a while what "exact" means.
Exactly.
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#7
03-08-2013, 09:42 PM
 Suhas Patil Senior Member Join Date: Dec 2012 Posts: 57
Re: Q1: clarification on the meaning of polynomial transform of order Q

I really want to be careful. Because I've seen in the past exercises, that a small bug in the program or a little misinterpretation takes you in a different direction.
#8
03-08-2013, 10:51 PM
 boulis Member Join Date: Feb 2013 Location: Sydney, Australia Posts: 29
Re: Q1: clarification on the meaning of polynomial transform of order Q

Quote:
 Originally Posted by yaser Remember that the problem states that the constant (zeroth) coordinate in not counted in the dimensionality.
Yes, I know. I deliberately left it in, for completion reasons, and maybe to see if I get a comment like this
I am afraid I might have missed something and have the wrong answer. Although I am not trying to train on the comments

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