Creating array from 1.e-20 to 1, with steps 1.e-19, 1.e-18..

조회 수: 4 (최근 30일)
Gina DiCarlo
Gina DiCarlo 2016년 9월 15일
편집: John D'Errico 2016년 9월 15일
The only command I know to control the steps is when you use the : operator, however the step is too small (0.e+01) and it gives me an error of a 1 by 0 matrix.
Not sure what to use here, I have tried linspace and logspace but none seem to be of help.
Thanks!

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Peter Cook
Peter Cook 2016년 9월 15일
logspace(-20,0,21)
  댓글 수: 1
Gina DiCarlo
Gina DiCarlo 2016년 9월 15일
Thank you! After looking at the help selection on logspace I had a serious face palm moment

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John D'Errico
John D'Errico 2016년 9월 15일
편집: John D'Errico 2016년 9월 15일
As Peter points out, logspace is the way to do this. (In fact, I up-voted his answer.) In general, use existing tools where you can. This minimizes the odds of any problems, makes your code easy to read and debug, etc. But you don't need to use it. For those who might want to see a simple alternative, this will suffice:
v = 10.^(-20:0);

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