x=[1 2 3;
4 5 6;
7 8 9]
CONVERT TAN TO SIN
Solving Quadratic Equations (Version 1)
Evaluating a polynomial
Stop a ZigZag scanning N*N Matrix at any diag you want
Divisible by 21
Hilbert Scan Algorithm
Find the minimal value in N*N Matrix
Find my secret function IV
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