usecrate::math::{Matrix, Vector};/// Possible equality constraints.
#[derive(Clone)]// Clone is for passing from minimize to minimize_inner in fem/block/mod.rs/ElasticHyperviscousFiniteElementBlock
pubenumEqualityConstraint{/// Indices fixed at initial guess values.
Fixed(Vec<usize>),/// Linear equality constraint.
Linear(Matrix, Vector),/// No constraint.
None,}