ladiv(3) Library Functions Manual ladiv(3)

ladiv - ladiv: complex divide


complex function cladiv (x, y)
CLADIV performs complex division in real arithmetic, avoiding unnecessary overflow. subroutine dladiv (a, b, c, d, p, q)
DLADIV performs complex division in real arithmetic, avoiding unnecessary overflow. subroutine dladiv1 (a, b, c, d, p, q)
double precision function dladiv2 (a, b, c, d, r, t)
subroutine sladiv (a, b, c, d, p, q)
SLADIV performs complex division in real arithmetic, avoiding unnecessary overflow. subroutine sladiv1 (a, b, c, d, p, q)
real function sladiv2 (a, b, c, d, r, t)
complex *16 function zladiv (x, y)
ZLADIV performs complex division in real arithmetic, avoiding unnecessary overflow.

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

Purpose:

 CLADIV := X / Y, where X and Y are complex.  The computation of X / Y
 will not overflow on an intermediary step unless the results
 overflows.

Parameters

X 
          X is COMPLEX

Y

          Y is COMPLEX
          The complex scalars X and Y.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 63 of file cladiv.f.

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 Michael Baudin and Robert L. Smith
 and can be found in the paper
 'A Robust Complex Division in Scilab'

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.

Definition at line 90 of file dladiv.f.

Definition at line 176 of file dladiv.f.

Definition at line 215 of file dladiv.f.

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

Purpose:

 SLADIV 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'

Parameters

A 
          A is REAL

B

          B is REAL

C

          C is REAL

D

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

P

          P is REAL

Q

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

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 90 of file sladiv.f.

Definition at line 176 of file sladiv.f.

Definition at line 215 of file sladiv.f.

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

Purpose:

 ZLADIV := X / Y, where X and Y are complex.  The computation of X / Y
 will not overflow on an intermediary step unless the results
 overflows.

Parameters

X 
          X is COMPLEX*16

Y

          Y is COMPLEX*16
          The complex scalars X and Y.

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 63 of file zladiv.f.

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