dladiv(3S)

NAME
     DLADIV - perform complex division in real arithmetic  a + i*b p + i*q =
     --------- c + i*d  The algorithm is due to Robert L

SYNOPSIS
     SUBROUTINE DLADIV( A, B, C, D, P, Q )

         DOUBLE         PRECISION A, B, C, D, P, Q

IMPLEMENTATION
     These routines are part of the SCSL Scientific Library and can be loaded
     using either the -lscs or the -lscs_mp option.  The -lscs_mp option
     directs the linker to use the multi-processor version of the library.

     When linking to SCSL with -lscs or -lscs_mp, the default integer size is
     4 bytes (32 bits). Another version of SCSL is available in which integers
     are 8 bytes (64 bits).  This version allows the user access to larger
     memory sizes and helps when porting legacy Cray codes.  It can be loaded
     by using the -lscs_i8 option or the -lscs_i8_mp option. A program may use
     only one of the two versions; 4-byte integer and 8-byte integer library
     calls cannot be mixed.

PURPOSE
     DLADIV performs complex division in real arithmetic a + i*b p + i*q =
     --------- c + i*d The algorithm is due to Robert L. Smith and can be
     found in D. Knuth, The art of Computer Programming, Vol.2, p.195


ARGUMENTS
     A       (input) DOUBLE PRECISION
             B       (input) DOUBLE PRECISION C       (input) DOUBLE PRECISION
             D       (input) DOUBLE PRECISION The scalars a, b, c, and d in
             the above expression.

     P       (output) DOUBLE PRECISION
             Q       (output) DOUBLE PRECISION The scalars p and q in the
             above expression.

SEE ALSO
     INTRO_LAPACK(3S), INTRO_SCSL(3S)

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