sum1(3)                    Library Functions Manual                    sum1(3)

NAME
       sum1 - sum1: sum | x_i | (in LAPACK)

SYNOPSIS
   Functions
       double precision function dzsum1 (n, cx, incx)
           DZSUM1 forms the 1-norm of the complex vector using the true
           absolute value.
       real function scsum1 (n, cx, incx)
           SCSUM1 forms the 1-norm of the complex vector using the true
           absolute value.

Detailed Description
Function Documentation
   double precision function dzsum1 (integer n, complex*16, dimension( * ) cx,
       integer incx)
       DZSUM1 forms the 1-norm of the complex vector using the true absolute
       value.

       Purpose:


           !>
           !> DZSUM1 takes the sum of the absolute values of a complex
           !> vector and returns a double precision result.
           !>
           !> Based on DZASUM from the Level 1 BLAS.
           !> The change is to use the 'genuine' absolute value.
           !>

       Parameters
           N

           !>          N is INTEGER
           !>          The number of elements in the vector CX.
           !>

           CX

           !>          CX is COMPLEX*16 array, dimension (N)
           !>          The vector whose elements will be summed.
           !>

           INCX

           !>          INCX is INTEGER
           !>          The spacing between successive values of CX.  INCX > 0.
           !>

       Author
           Univ. of Tennessee


           Univ. of California Berkeley


           Univ. of Colorado Denver


           NAG Ltd.

       Contributors:
           Nick Higham for use with ZLACON.

       Definition at line 80 of file dzsum1.f.

   real function scsum1 (integer n, complex, dimension( * ) cx, integer incx)
       SCSUM1 forms the 1-norm of the complex vector using the true absolute
       value.

       Purpose:


           !>
           !> SCSUM1 takes the sum of the absolute values of a complex
           !> vector and returns a single precision result.
           !>
           !> Based on SCASUM from the Level 1 BLAS.
           !> The change is to use the 'genuine' absolute value.
           !>

       Parameters
           N

           !>          N is INTEGER
           !>          The number of elements in the vector CX.
           !>

           CX

           !>          CX is COMPLEX array, dimension (N)
           !>          The vector whose elements will be summed.
           !>

           INCX

           !>          INCX is INTEGER
           !>          The spacing between successive values of CX.  INCX > 0.
           !>

       Author
           Univ. of Tennessee


           Univ. of California Berkeley


           Univ. of Colorado Denver


           NAG Ltd.

       Contributors:
           Nick Higham for use with CLACON.

       Definition at line 80 of file scsum1.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

LAPACK                          Version 3.12.0                         sum1(3)