Function rgsl::blas::level2::dsymv

pub fn dsymv(
    uplo: CblasUplo, 
    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.