[mlpack-git] [mlpack] more efficient matrix inner product computation (#2)

[Marcus Edel]

I totally forgot to answer to the issue. I screwed up my results in the first place. Actually `accu(a % b)` is faster in every test case.

Additionally here are my results for the LRSD Test test case:

```
tracedot1     122.18s   119.53s   122.40s
tracedot2     297.94s   295.64s   297.12s
```

---
Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/pull/2#issuecomment-70074725
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