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    Answers and rating deltas for
    covariance matrix using np.matmul(data.T, data)
| Author | Votes | Δ | 
|---|---|---|
| Engineero | 3 | +0.42 | 
| anand_v.singh | 1 | -3.33 | 
Last visited: May 11, 2019, 11:16:05 PM