Roots function is solving eigth order polynomial equation as fifth order.
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I have an equation : 
Using coeffs(), i get their coefficients, flip them left to right and then use roots() function to get its zeroes.
But, when 
, coeffs() function gives coeffs of non-zero terms only,
, coeffs() function gives coeffs of non-zero terms only, that is, for fliplr(coeffs(fn)) = [a,c,e,g,i]
So, when I put this coeffs() solution in roots(), it considers it as fifth order polynomial.
How can I get around this problem?
2 个评论
David Wilson
2019-9-14
Have you looked at coeffsort in the user's group?
Samridh Sharma
2019-9-14
采纳的回答
Steven Lord
2019-9-14
1 个投票
Specify the 'All' option in your call to coeffs to return all the coefficients, even those that are 0.
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