F06ERF (DDOTI) computes the scalar product of a sparse real vector, stored in compressed form, with a real vector.
F06ERF (DDOTI) returns, via the function name, the value of the scalar product
is a sparse real vector, stored in compressed form and
is a real vector in full storage format.
Dodson D S, Grimes R G and Lewis J G (1991) Sparse extensions to the Fortran basic linear algebra subprograms ACM Trans. Math. Software 17 253–263