iamax - Man Page
iamax: argmax_i | real( x_i ) | + | imag( x_i ) |
Synopsis
Functions
integer function icamax (n, cx, incx)
ICAMAX
integer function idamax (n, dx, incx)
IDAMAX
integer function isamax (n, sx, incx)
ISAMAX
integer function izamax (n, zx, incx)
IZAMAX
Detailed Description
Function Documentation
integer function icamax (integer n, complex, dimension(*) cx, integer incx)
ICAMAX
Purpose:
ICAMAX finds the index of the first element having maximum |Re(.)| + |Im(.)|
- Parameters
N
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 CX- Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Further Details:
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(*)Definition at line 70 of file icamax.f.
integer function idamax (integer n, double precision, dimension(*) dx, integer incx)
IDAMAX
Purpose:
IDAMAX finds the index of the first element having maximum absolute value.
- Parameters
N
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.
Further Details:
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(*)Definition at line 70 of file idamax.f.
integer function isamax (integer n, real, dimension(*) sx, integer incx)
ISAMAX
Purpose:
ISAMAX finds the index of the first element having maximum absolute value.
- Parameters
N
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.
Further Details:
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(*)Definition at line 70 of file isamax.f.
integer function izamax (integer n, complex*16, dimension(*) zx, integer incx)
IZAMAX
Purpose:
IZAMAX finds the index of the first element having maximum |Re(.)| + |Im(.)|
- Parameters
N
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.
Further Details:
jack dongarra, 1/15/85.
modified 3/93 to return if incx .le. 0.
modified 12/3/93, array(1) declarations changed to array(*)Definition at line 70 of file izamax.f.
Author
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