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Search a 2D Matrix | Search a 2D Matrix II | 亞馬遜考題 | Leetcode 74 | Leetcode 240 | Python
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1 day ago
Search a 2D Matrix | Search a 2D Matrix II | 亞馬遜考題 | Leetcode 74 | Leetcode 240 | Python
![If the matrix [0 a a][2b b -b][c -c c] is orthogonal, then the values of a, b, c are](http://i.ytimg.com/vi/0zTrjdi0MVo/mqdefault.jpg "If the matrix [0 a a][2b b -b][c -c c] is orthogonal, then the values of a, b, c are")
![[Deep Learning Matrix Reloaded] From spanning sets to deep matrix factorization (part 2)](http://i.ytimg.com/vi/exCJr3zNhBk/mqdefault.jpg "[Deep Learning Matrix Reloaded] From spanning sets to deep matrix factorization (part 2)")
![Find a matrix X such that A+ 2B + X = 0, where A= [[2,-1],[3,5]], B= [[-1,1],[0,2]]](http://i.ytimg.com/vi/3ZmjIwS8e-Q/mqdefault.jpg "Find a matrix X such that A+ 2B + X = 0, where A= [[2,-1],[3,5]], B= [[-1,1],[0,2]]")
![For the matrix A = [ 3 2 1 1 ] find the number a and b such that A² + aA + bI = 0](http://i.ytimg.com/vi/pSCF1OFLjrk/mqdefault.jpg "For the matrix A = [ 3 2 1 1 ] find the number a and b such that A² + aA + bI = 0")