DLADIV performs complex division in  real arithmetic
                       a + i*b
            p + i*q = ---------
                       c + i*d
 The algorithm is due to Michael Baudin and Robert L. Smith
 and can be found in the paper
 'A Robust Complex Division in Scilab'

A

          A is DOUBLE PRECISION

B

          B is DOUBLE PRECISION

C

          C is DOUBLE PRECISION

D

          D is DOUBLE PRECISION
          The scalars a, b, c, and d in the above expression.

P

          P is DOUBLE PRECISION

Q

          Q is DOUBLE PRECISION
          The scalars p and q in the above expression.

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