[u/mrichter/AliRoot.git] / MINICERN / mathlib / gen / d / c512.F

*
* $Id$
*
* $Log$
* Revision 1.1.1.1  1996/04/01 15:02:23  mclareni
* Mathlib gen
*
*
#include "gen/pilot.h"
      SUBROUTINE C512(A,B)
      REAL A(257),B(257),C(256)
      COMMON /TAB/D(126),E(127)
      CALL D701BD
      S2 = A(128)+A(130)
      DO 10 I=3,127,2
      S2 = S2+A(I-1)+A(259-I)
      A1 = A(I+1)-A(I-1)
      A2 = A(259-I)-A(257-I)
      C1R = A(I)+A(258-I)
      C2R = A(I)-A(258-I)
      C1I = A1-A2
      C2I = A1+A2
      C1 = -D(I-2)
      C2 = D(I-1)
      C3R = C1*C2R-C2*C2I
      C3I = C1*C2I+C2*C2R
      C(I) = C1R+C3R
      C(I+1) = C1I+C3I
      C(258-I) = C1R-C3R
   10 C(259-I) = C3I-C1I
      C(1) = A(1)+A(257)
      C(2) = A(1)-A(257)
      C(129) = 2.*A(129)
      C(130) = 2.*(A(128)-A(130))
      CALL D128(C,C(2),2,C,C(2),2)
      S2 = 2.*S2
      B(1) = C(1)+S2
      B(257) = C(1)-S2
      B(129) = C(129)
      DO 20 I=2,128
      E1 = 0.5*(C(I)+C(258-I))
      E2 = E(I-1)*(C(I)-C(258-I))
      B(I) = E1+E2
   20 B(258-I) = E1-E2
      RETURN
      END
Commit	Line	Data
fe4da5cc	1	*
	2	* $Id$
	3	*
	4	* $Log$
	5	* Revision 1.1.1.1 1996/04/01 15:02:23 mclareni
	6	* Mathlib gen
	7	*
	8	*
	9	#include "gen/pilot.h"
	10	SUBROUTINE C512(A,B)
	11	REAL A(257),B(257),C(256)
	12	COMMON /TAB/D(126),E(127)
	13	CALL D701BD
	14	S2 = A(128)+A(130)
	15	DO 10 I=3,127,2
	16	S2 = S2+A(I-1)+A(259-I)
	17	A1 = A(I+1)-A(I-1)
	18	A2 = A(259-I)-A(257-I)
	19	C1R = A(I)+A(258-I)
	20	C2R = A(I)-A(258-I)
	21	C1I = A1-A2
	22	C2I = A1+A2
	23	C1 = -D(I-2)
	24	C2 = D(I-1)
	25	C3R = C1C2R-C2C2I
	26	C3I = C1C2I+C2C2R
	27	C(I) = C1R+C3R
	28	C(I+1) = C1I+C3I
	29	C(258-I) = C1R-C3R
	30	10 C(259-I) = C3I-C1I
	31	C(1) = A(1)+A(257)
	32	C(2) = A(1)-A(257)
	33	C(129) = 2.*A(129)
	34	C(130) = 2.*(A(128)-A(130))
	35	CALL D128(C,C(2),2,C,C(2),2)
	36	S2 = 2.*S2
	37	B(1) = C(1)+S2
	38	B(257) = C(1)-S2
	39	B(129) = C(129)
	40	DO 20 I=2,128
	41	E1 = 0.5*(C(I)+C(258-I))
	42	E2 = E(I-1)*(C(I)-C(258-I))
	43	B(I) = E1+E2
	44	20 B(258-I) = E1-E2
	45	RETURN
	46	END