Q1DA

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C                           Q 1 D A
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C             Q1DA IS A NEW PACKAGE FOR THE AUTOMATIC EVALUATION OF
C      ONE DIMENSIONAL INTEGRALS.
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C             THIS PACKAGE CONTAINS THREE USER CALLABLE SUBROUTINES,
C         Q1DA, Q1DB AND Q1DAX.
C         Q1DA IS THE EASIEST TO USE, Q1DAX THE MOST SOPHISTICATED.
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C             SOME INTERESTING FEATURES OF THIS PACKAGE ARE:
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C     (1)  BUILT IN RANDOMIZATION.  THIS ALLOWS PROBLEMS TO BE RUN
C            AGAIN TO CHECK FOR CONSISTENCY.
C     (2)  SINGULARITY WEAKENING.  THIS ALLOWS THE EVALUATION OF
C            INTEGRALS WHICH HAVE STRONG ENDPOINT SINGULARITIES.
C     (3)  RESTARTING.  THIS ALLOWS CALCULATIONS TO BE CONTINUED TO
C            GREATER ACCURACY WITHOUT LOSING OLD INFORMATION.
C     (4)  SPECIFICATION OF INITIAL MESH.  THIS OPTION ALLOWS THE
C            USER TO TELL THE PROGRAM JUST WHERE DIFFICULTIES ARE
C            LIKELY TO BE FOUND.
C     (5)  OUTPUT OF SMALLEST AND LARGEST INTEGRAND VALUE.  THIS IS
C            USEFUL FOR PLOTTING APPLICATIONS.
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