Please, don't use cos, tan, cot matlab functions.
As per Solution 1043996, need to ban a couple of other functions to enforce instruction.
This is wrong. For example, x = 3*pi/4, cot(x) = -1; but this solution gives sqrt(1-sin(x)^2)/sin(x) = 1.
What is Sum Of all elements of Matrix
Create a vector
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Calculate the eigenvalues of A.
Return the length of the longest word in the string.
Solve the system of equations.
Return the amount of palindromes (words) in the string.
Find the product of the positive elements above the main diagonal.
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