What you're looking for is not called the "characteristics equation", but the characteristic polynomial.
More test cases, please. ;-)
Return unique values without sorting
Whether the input is vector?
The Answer to Life, the Universe, and Everything
Integer or Float?
multiply by three
Find out next state (NS) of T Flip-Flop.
Find Out sum of principal diagonal element of given matrix
Try and Catch Simple Example
Check transmitted data follow even parity (True or false)
Union of two set decreasing order
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