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Janusz
办美国文凭加拿大文凭澳洲文凭英国文凭学位证毕业证成绩单
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Understanding Sparse Matrices in Julia: How the A\b Operation Works for Efficient Solving
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1 day ago
Understanding Sparse Matrices in Julia: How the A\b Operation Works for Efficient Solving
![Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3](http://i.ytimg.com/vi/B7UwIYXEcX8/mqdefault.jpg "Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3")
![Find 3A +2B if A=[4 2 1, 3 0 2] and B=[1 2 -3, 3 2 4]](http://i.ytimg.com/vi/fcmvOD50_gI/mqdefault.jpg "Find 3A +2B if A=[4 2 1, 3 0 2] and B=[1 2 -3, 3 2 4]")
