Function rgsl::blas::level2::dsymv

pub fn dsymv(uplo: Uplo, alpha: f64, A: &MatrixF64, x: &VectorF64, beta: f64, y: &mut VectorF64) -> Value

These functions compute the matrix-vector product and sum y = \alpha A x + \beta y for the symmetric matrix A. Since the matrix A is symmetric only its upper half or lower half need to be stored. When Uplo is CblasUpper then the upper triangle and diagonal of A are used, and when Uplo is CblasLower then the lower triangle and diagonal of A are used.