What you're looking for is not called the "characteristics equation", but the characteristic polynomial.
More test cases, please. ;-)
Return the 3n+1 sequence for n
give nth decimal place of pi
Back to basics 22 - Rotate a matrix
matrix of natural number
Largest Prime Number
Find out sum of all elements of given Matrix
MATLAB Basic: rounding II
Number of Flip Flop required in ripple counter
Find Out sum of principal diagonal element of given matrix
Convert given decimal number to binary number.
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