Mercurial > repos > non-riemannian-opt / file comparison
comparison: src/dist.rs
src/dist.rs
- changeset 8
- 17d71ca4ce84
- parent 7
- 8979a6638424
- child 13
- f67949050a32
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| 7:8979a6638424 | 8:17d71ca4ce84 |
|---|---|
| 43 } | 43 } |
| 44 } | 44 } |
| 45 | 45 |
| 46 impl<M : ManifoldPoint> Desc<M> for DistToSquaredDiv2<M> { | 46 impl<M : ManifoldPoint> Desc<M> for DistToSquaredDiv2<M> { |
| 47 fn desc(&self, τ : f64, x : M) -> M { | 47 fn desc(&self, τ : f64, x : M) -> M { |
| 48 x.exp(&(self.grad(&x) * τ)) | 48 let t = self.grad(&x) * τ; |
| 49 x.exp(&t) | |
| 49 } | 50 } |
| 50 } | 51 } |
| 51 | 52 |
| 52 impl<M : ManifoldPoint> Grad<M> for DistToSquaredDiv2<M> { | 53 impl<M : ManifoldPoint> Grad<M> for DistToSquaredDiv2<M> { |
| 53 fn grad(&self, x : &M) -> M::Tangent { | 54 fn grad(&self, x : &M) -> M::Tangent { |
