F06GTF (ZAXPYI) adds a scaled sparse complex vector to an unscaled complex vector.
F06GTF (ZAXPYI) performs the operation
is a sparse complex vector stored in compressed form, and
is a complex vector in full storage form.
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