asum - asum: sum | real( x_i ) | + | imag( x_i ) |

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doubleprecisionfunctiondasum(integern,doubleprecision,dimension(*)dx,integerincx)DASUMPurpose: DASUM takes the sum of the absolute values. ParametersN N is INTEGER number of elements in input vector(s) DX DX is DOUBLE PRECISION array, dimension ( 1 + ( N - 1 )*abs( INCX ) ) INCX INCX is INTEGER storage spacing between elements of DX Author Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. FurtherDetails: jack dongarra, linpack, 3/11/78. modified 3/93 to return if incx .le. 0. modified 12/3/93, array(1) declarations changed to array(*) doubleprecisionfunctiondzasum(integern,complex*16,dimension(*)zx,integerincx)DZASUMPurpose: DZASUM takes the sum of the (|Re(.)| + |Im(.)|)'s of a complex vector and returns a double precision result. ParametersN N is INTEGER number of elements in input vector(s) ZX ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) ) INCX INCX is INTEGER storage spacing between elements of ZX Author Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. FurtherDetails: jack dongarra, 3/11/78. modified 3/93 to return if incx .le. 0. modified 12/3/93, array(1) declarations changed to array(*) realfunctionsasum(integern,real,dimension(*)sx,integerincx)SASUMPurpose: SASUM takes the sum of the absolute values. uses unrolled loops for increment equal to one. ParametersN N is INTEGER number of elements in input vector(s) SX SX is REAL array, dimension ( 1 + ( N - 1 )*abs( INCX ) ) INCX INCX is INTEGER storage spacing between elements of SX Author Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. FurtherDetails: jack dongarra, linpack, 3/11/78. modified 3/93 to return if incx .le. 0. modified 12/3/93, array(1) declarations changed to array(*) realfunctionscasum(integern,complex,dimension(*)cx,integerincx)SCASUMPurpose: SCASUM takes the sum of the (|Re(.)| + |Im(.)|)'s of a complex vector and returns a single precision result. ParametersN N is INTEGER number of elements in input vector(s) CX CX is COMPLEX array, dimension ( 1 + ( N - 1 )*abs( INCX ) ) INCX INCX is INTEGER storage spacing between elements of SX Author Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. FurtherDetails: jack dongarra, linpack, 3/11/78. modified 3/93 to return if incx .le. 0. modified 12/3/93, array(1) declarations changed to array(*)

asum - asum: sum | real( x_i ) | + | imag( x_i ) |

Functions double precision function dasum (n, dx, incx) DASUM double precision function dzasum (n, zx, incx) DZASUM real function sasum (n, sx, incx) SASUM real function scasum (n, cx, incx) SCASUM