File: RADD.FT of Tape: Various/ETH/eth11-1
(Source file text)
C .................................................................. C C SUBROUTINE RADD C C PURPOSE C ADD ROW OF ONE MATRIX TO ROW OF ANOTHER MATRIX C C USAGE C CALL RADD(A,IRA,R,IRR,N,M,MS,L) C C DESCRIPTION OF PARAMETERS C A - NAME OF INPUT MATRIX C IRA - ROW IN MATRIX A TO BE ADDED TO ROW IRR OF MATRIX R C R - NAME OF OUTPUT MATRIX C IRR - ROW IN MATRIX R WHERE SUMMATION IS DEVELOPED C N - NUMBER OF ROWS IN A C M - NUMBER OF COLUMNS IN A AND R C MS - ONE DIGIT NUMBER FOR STORAGE MODE OF MATRIX A C 0 - GENERAL C 1 - SYMMETRIC C 2 - DIAGONAL C L - NUMBER OF ROWS IN R C C REMARKS C MATRIX R MUST BE A GENERAL MATRIX C MATRIX R CANNOT BE IN THE SAME LOCATION AS MATRIX A UNLESS C A IS GENERAL C C SUBROUTINES AND FUNCTION SUBPROGRAMS REQUIRED C LOC C C METHOD C EACH ELEMENT OF ROW IRA OF MATRIX A IS ADDED TO C CORRESPONDING ELEMENT OF ROW IRR OF MATRIX R C C .................................................................. C SUBROUTINE RADD(A,IRA,R,IRR,N,M,MS,L) DIMENSION A(1),R(1) C IR=IRR-L DO 2 J=1,M IR=IR+L C C LOCATE INPUT ELEMENT FOR ANY MATRIX STORAGE MODE C CALL LOC(IRA,J,IA,N,M,MS) C C TEST FOR ZERO ELEMENT IN DIAGONAL MATRIX C IF(IA) 1,2,1 C C ADD ELEMENTS C 1 R(IR)=R(IR)+A(IA) 2 CONTINUE RETURN END C