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.
Return 'on' or 'off'
Rounding off numbers to n decimals
Remove the positive integers.
Divide by 4
Solve the following system of equations.
Solve the system of equations.
Return ! if array element starts with a certain letter. Otherwise return ?
Find matrix of indices for multidimensional matrix.
Check if a string starts with another string
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