 
      DOUBLE PRECISION FUNCTION DCSEVL(X,A,N)
C***BEGIN PROLOGUE  DCSEVL
C***DATE WRITTEN   770401   (YYMMDD)
C***REVISION DATE  820801   (YYMMDD)
C***CATEGORY NO.  C3A2
C***KEYWORDS  CHEBYSHEV,FNLIB,SPECIAL FUNCTION
C***AUTHOR  FULLERTON, W., (LANL)
C***PURPOSE  Evaluate the double precision N-term Chebyshev series A
C            at X.
C***DESCRIPTION
C
C Evaluate the N-term Chebyshev series A at X.  Adapted from
C R. Broucke, Algorithm 446, C.A.C.M., 16, 254 (1973).
C W. Fullerton, C-3, Los Alamos Scientific Laboratory.
C
C       Input Arguments --
C X    double precision value at which the series is to be evaluated.
C A    double precision array of N terms of a Chebyshev series.  In
C      evaluating A, only half of the first coefficient is summed.
C N    number of terms in array A.
C***REFERENCES  (NONE)
C***ROUTINES CALLED  XERROR
C***END PROLOGUE  DCSEVL
 
 
