Problem 1155. Find the solution of algebraic equation

HARISANKAR PS

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Find the solution of algebraic equation of the form
an*x^n + a(n-1)*x^(n-1) + (an-2)*x^(n-2)+...... a2*x^2 + a1*x^1 + a0 = 0;
Input to the function is of the form : [an an-1 an-2 .....a2 a1 a0] :coef vector
eg: equation x^5-5=2 -> Input = [1 0 0 0 0 -5]

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Last Solution submitted on Feb 17, 2026

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HARISANKAR PS on 30 Dec 2012

why it showing the error
"Error: Could not check out Symbolic Math Toolbox license."

Richard Zapor on 1 Jan 2013

Solution set note: i' is -i. More explicit method would be ; usage or rot90. There is another way, which I don't recall to transpose an imaginary array without creating complex conjugates.

Alfonso Nieto-Castanon on 1 Jan 2013

i.'

trekker on 2 Jan 2013

The author should make some change: either the spec or the test cases are flawed, the order of the solution should not matter.

Jihye Sofia Seo on 13 Feb 2017

i' = -i
i.' = -i

.' is transpose
' is transpose and then complex conjugate

Dyuman Joshi on 29 Jun 2021

Test suite has modified to correct ambiguities.

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