pub type Tangents<C, V> = (FirstPiolaKirchhoffTangentStiffness, <C as ElasticIV<V>>::TangentVu, <C as ElasticIV<V>>::TangentUv, <C as ElasticIV<V>>::TangentVv);Expand description
The tangents of the coupled system, in the order the block solver takes them.