precision issues, a single test case, meaningless "not using built-in functions" limitation, and somewhat taunting "have a pride" exhortation... please do the same and put some more thought into your problem
Updated TSuite now
Humm. the test suite is actually requesting Gaussian elimination, not LU decomposition. You may check it by using [L,U] = lu(x). They are very similar processes, but not exactly the same.
Not a built in function, but still a very cheesy answer! :-)
I see you! hahahaha
vectorization in N
Angle between two vectors
Solving a quadratic equation
Find cosine between two given vectors u and v.
Count me in
Move if I am Optimus Prime
Some tweaks in summation, Can you decode? :)
Convert degrees to radians
Create tangent function out of cosine only
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