Sofia on Nostr: s(e)xy ```rust let sxy: f64 = hour_diffs.iter() .zip(&grade_diffs) .map(|(x, y)| x * ...

s(e)xy
```rust
let sxy: f64 = hour_diffs.iter()
.zip(&grade_diffs)
.map(|(x, y)| x * y)
.sum();
```