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Timeline for Why is $BB^T$ always invertible?

Current License: CC BY-SA 3.0

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Jan 13, 2018 at 18:27 history edited Tobias CC BY-SA 3.0
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Jan 13, 2018 at 16:24 comment added yaodao vang Yes ,thanks Tobias. Your answer very helpful.
Jan 13, 2018 at 16:22 vote accept yaodao vang
Jan 13, 2018 at 15:16 history answered Tobias CC BY-SA 3.0