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[opt_transport] Replace np.sum(a * b) with np.vdot(a, b) #475

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Merged
mmcky merged 2 commits into from
Jul 21, 2025
Merged

[opt_transport] Replace np.sum(a * b) with np.vdot(a, b) #475

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ee1f88f
Replace np.sum(a * b) with np.vdot(a, b)
suda-yuga Jun 25, 2025
1f661bf
add @oyamad suggestion to mention the use of vdot
mmcky Jul 21, 2025
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4 changes: 3 additions & 1 deletion lectures/opt_transport.md
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Expand Up @@ -681,10 +681,12 @@ X
Sure enough, we have the same solution and the same cost

```{code-cell} ipython3
total_cost = np.sum(X * C)
total_cost = np.vdot(X, C)
total_cost
```

Here we use [np.vdot](https://numpy.org/doc/stable/reference/generated/numpy.vdot.html) for the trace inner product of X and C

### A Larger Application

Now let's try using the same package on a slightly larger application.
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