dladiv (l)  Linux Man Pages
dladiv: performs complex division in real arithmetic a + i*b p + i*q =  c + i*d The algorithm is due to Robert L
Command to display dladiv
manual in Linux: $ man l dladiv
NAME
DLADIV  performs 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
PURPOSE
DLADIV performs complex division in real arithmetic
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.
Pages related to dladiv
 dladiv (3)
 dla_gbamv (l)  performs one of the matrixvector operations y := alpha*abs(A)*abs(x) + beta*abs(y),
 dla_gbrcond (l)  DLA_GERCOND Estimate the Skeel condition number of op(A) * op2(C) where op2 is determined by CMODE as follows CMODE = 1 op2(C) = C CMODE = 0 op2(C) = I CMODE = 1 op2(C) = inv(C) The Skeel condition number cond(A) = norminf( inv(A)A ) is computed by computing scaling factors R such that diag(R)*A*op2(C) is row equilibrated and computing the standard infinitynorm condition number
 dla_gbrfsx_extended (l)  computes ..
 dla_geamv (l)  performs one of the matrixvector operations y := alpha*abs(A)*abs(x) + beta*abs(y),
 dla_gercond (l)  DLA_GERCOND estimate the Skeel condition number of op(A) * op2(C) where op2 is determined by CMODE as follows CMODE = 1 op2(C) = C CMODE = 0 op2(C) = I CMODE = 1 op2(C) = inv(C) The Skeel condition number cond(A) = norminf( inv(A)A ) is computed by computing scaling factors R such that diag(R)*A*op2(C) is row equilibrated and computing the standard infinitynorm condition number
 dla_gerfsx_extended (l)  computes ..
 dla_lin_berr (l)  DLA_LIN_BERR compute componentwise relative backward error from the formula max(i) ( abs(R(i)) / ( abs(op(A_s))*abs(Y) + abs(B_s) )(i) ) where abs(Z) is the componentwise absolute value of the matrix or vector Z