pub trait BasicMatrixOpt<'a, T>{
// Provided method
fn to_matrixfull(&self) -> Option<MatrixFull<T>>
where T: Copy + Clone { ... }
}
pub trait BasicMatrixOpt<'a, T>{
// Provided method
fn to_matrixfull(&self) -> Option<MatrixFull<T>>
where T: Copy + Clone { ... }
}