kusano 2b45e8
      integer function iqmaxf(n,dx,incx)
kusano 2b45e8
c
kusano 2b45e8
c     finds the index of element having max. value.
kusano 2b45e8
c     jack dongarra, linpack, 3/11/78.
kusano 2b45e8
c     modified 3/93 to return if incx .le. 0.
kusano 2b45e8
c     modified 12/3/93, array(1) declarations changed to array(*)
kusano 2b45e8
c
kusano 2b45e8
      real*10 dx(*),dmax
kusano 2b45e8
      integer i,incx,ix,n
kusano 2b45e8
c
kusano 2b45e8
      iqmaxf = 0
kusano 2b45e8
      if( n.lt.1 .or. incx.le.0 ) return
kusano 2b45e8
      iqmaxf = 1
kusano 2b45e8
      if(n.eq.1)return
kusano 2b45e8
      if(incx.eq.1)go to 20
kusano 2b45e8
c
kusano 2b45e8
c        code for increment not equal to 1
kusano 2b45e8
c
kusano 2b45e8
      ix = 1
kusano 2b45e8
      dmax = dx(1)
kusano 2b45e8
      ix = ix + incx
kusano 2b45e8
      do 10 i = 2,n
kusano 2b45e8
         if(dx(ix).le.dmax) go to 5
kusano 2b45e8
         iqmaxf = i
kusano 2b45e8
         dmax = dx(ix)
kusano 2b45e8
    5    ix = ix + incx
kusano 2b45e8
   10 continue
kusano 2b45e8
      return
kusano 2b45e8
c
kusano 2b45e8
c        code for increment equal to 1
kusano 2b45e8
c
kusano 2b45e8
   20 dmax = dx(1)
kusano 2b45e8
      do 30 i = 2,n
kusano 2b45e8
         if(dx(i).le.dmax) go to 30
kusano 2b45e8
         iqmaxf = i
kusano 2b45e8
         dmax = dx(i)
kusano 2b45e8
   30 continue
kusano 2b45e8
      return
kusano 2b45e8
      end