Spookily similar to Problem 381 ("Angle between two vectors")....
Remove any row in which a NaN appears
Generate a random matrix A of (1,-1)
Is this triangle right-angled?
Rounding off numbers to n decimals
REPMAT Enhancement - Faster for Large Row Replication of Vector
PACMAT 04 - Optimized Ghosts, Equal Speed, 10 Lives
Sokoban: Puzzle 10.45
GJam 2014 China Rd A: Read Phone Number (Large)
Solve Quadratic : No * - or key functions permitted
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