C SUBROUTINE SINQI(N,WSAVE) C C SUBROUTINE SINQI INITIALIZES THE ARRAY WSAVE WHICH IS USED IN C BOTH SINQF AND SINQB. THE PRIME FACTORIZATION OF N TOGETHER WITH C A TABULATION OF THE TRIGONOMETRIC FUNCTIONS ARE COMPUTED AND C STORED IN WSAVE. C C INPUT PARAMETER C C N THE LENGTH OF THE SEQUENCE TO BE TRANSFORMED. THE METHOD C IS MOST EFFICIENT WHEN N IS A PRODUCT OF SMALL PRIMES. C C OUTPUT PARAMETER C C WSAVE A WORK ARRAY WHICH MUST BE DIMENSIONED AT LEAST 3*N+15. C THE SAME WORK ARRAY CAN BE USED FOR BOTH SINQF AND SINQB C AS LONG AS N REMAINS UNCHANGED. DIFFERENT WSAVE ARRAYS C ARE REQUIRED FOR DIFFERENT VALUES OF N. THE CONTENTS OF C WSAVE MUST NOT BE CHANGED BETWEEN CALLS OF SINQF OR SINQB. C SUBROUTINE SINQI (N,WSAVE) DIMENSION WSAVE(*) C CALL COSQI (N,WSAVE) RETURN END