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48 lines
822 B
Fortran
48 lines
822 B
Fortran
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subroutine forwardtrans(vec,n,mxl,tp)
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implicit none
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integer n,mxl,tp
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real vec(n)
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integer i,j
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integer forward
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i=n
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if (tp == 1) then
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forward=0
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do while(i.ge.n/(2**mxl))
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call split(vec,i)
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call predict(vec,i,forward)
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call update(vec,i,forward)
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call normalizationf(vec,i)
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i=i/2
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enddo
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endif
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if (tp == 2) then
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do while(i.ge.n/(2**mxl))
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call split(vec,i)
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call forwardstep(vec,i)
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i=i/2
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enddo
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endif
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if (tp == 3) then
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do while(i.ge.n/(2**mxl))
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call transformD8(vec,i)
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i=i/2
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enddo
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endif
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end subroutine
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subroutine normalizationf(x,n)
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implicit none
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real x(*)
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integer n
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integer k
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do k=1,n/2
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x(k)=x(k)*sqrt(2.0)
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enddo
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do k=n/2+1,n
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x(k)=x(k)*sqrt(2.0)/2
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enddo
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end
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