dladiv.f (3) - Linux Man Pages
subroutine dladiv (double precisionA, double precisionB, double precisionC, double precisionD, double precisionP, double precisionQ)
DLADIV performs complex division in real arithmetic, avoiding unnecessary overflow.
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
A is DOUBLE PRECISION
B is DOUBLE PRECISION
C is DOUBLE PRECISION
D is DOUBLE PRECISION The scalars a, b, c, and d in the above expression.
P is DOUBLE PRECISION
Q is DOUBLE PRECISION The scalars p and q in the above expression.
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
- September 2012
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