LFD Book Forum Exercise 1.3 (b)
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#1
02-15-2016, 07:38 AM
 MaciekLeks Member Join Date: Jan 2016 Location: Katowice, Upper Silesia, Poland Posts: 17
Exercise 1.3 (b)

If my thinking is correct:

,shouldn't we have the inequality of type less than or equal to than less than only (otherwise we lose x(t)=null vector)?

Thank you in advance.
#2
02-17-2016, 04:05 AM
 yaser Caltech Join Date: Aug 2009 Location: Pasadena, California, USA Posts: 1,478
Re: Exercise 1.3 (b)

By convention, the vector includes the zeroth coordinate which is fixed at , hence the norm of cannot be zero.
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#3
02-17-2016, 08:54 AM
 MaciekLeks Member Join Date: Jan 2016 Location: Katowice, Upper Silesia, Poland Posts: 17
Re: Exercise 1.3 (b)

Quote:
 Originally Posted by yaser By convention, the vector includes the zeroth coordinate which is fixed at , hence the norm of cannot be zero.
Of course
Thank you Professor.

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