q4rrota2.F File Reference

#include "implicit_f.inc"

Go to the source code of this file.

Functions/Subroutines
subroutine	q4rrota2 (r22, r23, r32, r33, y1, y2, y3, y4, z1, z2, z3, z4, nel)

Function/Subroutine Documentation

q4rrota2()

subroutine q4rrota2	(		r22,
			r23,
			r32,
			r33,
			y1,
			y2,
			y3,
			y4,
			z1,
			z2,
			z3,
			z4,
		integer, intent(in)	nel )

Definition at line 29 of file q4rrota2.F.

C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER, INTENT(IN) :: NEL
C     REAL
      my_real
     .   r22(*), r23(*), r32(*), r33(*),
     .   y1(*), y2(*), y3(*), y4(*),
     .   z1(*), z2(*), z3(*), z4(*)
C-----------------------------------------------
c FUNCTION: 
c ARGUMENTS:  (I: input, O: output, IO: input & output, W: workspace)
c TYPE NAME                FUNCTION
c  I   R22(*)~R33(*)      - [Rij]
c  IO  Y1(*)~Z4(*)        - {X}-->{X'}
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I
C     REAL
      my_real
     .   y,z
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
C     {X}=[R]{X'} <=> {X'}=T([R]){X}
C     INPUT: [R], {X}
C     OUTPUT: {X'}
      DO i=1,nel
        y=r22(i)*y1(i)+r32(i)*z1(i)
        z=r23(i)*y1(i)+r33(i)*z1(i)
        y1(i)=y
        z1(i)=z
        y=r22(i)*y2(i)+r32(i)*z2(i)
        z=r23(i)*y2(i)+r33(i)*z2(i)
        y2(i)=y
        z2(i)=z
        y=r22(i)*y3(i)+r32(i)*z3(i)
        z=r23(i)*y3(i)+r33(i)*z3(i)
        y3(i)=y
        z3(i)=z
        y=r22(i)*y4(i)+r32(i)*z4(i)
        z=r23(i)*y4(i)+r33(i)*z4(i)
        y4(i)=y
        z4(i)=z
      ENDDO
C
      RETURN