2. EL 7
  3. lapack
  4. DLADIV(3)

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dladiv.f(3) LAPACK dladiv.f(3)

NAME

dladiv.f -

SYNOPSIS

Functions/Subroutines


subroutine dladiv (A, B, C, D, P, Q)
DLADIV performs complex division in real arithmetic, avoiding unnecessary overflow.

Function/Subroutine Documentation

subroutine dladiv (double precisionA, double precisionB, double precisionC, double precisionD, double precisionP, double precisionQ)

DLADIV performs complex division in real arithmetic, avoiding unnecessary overflow.

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

Parameters:

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.

Author:

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Date:

September 2012

Definition at line 91 of file dladiv.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Tue Sep 25 2012 Version 3.4.2