What you're looking for is not called the "characteristics equation", but the characteristic polynomial.
More test cases, please. ;-)
Basic arrays operations.
Create an index-powered vector
Convert given decimal number to binary number.
Remove the positive integers.
Sum of integers numbers
Find Excess 3 code of given decimal number.
Average speed for the entire trip
Find out phase angle of second order system.
Delete 2nd and 5th column of Given 6*6 matrix
Transpose of matrix
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