FLASH4.6.1 API

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TABLE OF CONTENTS


[Functions] source/numericalTools/Interpolate/Interpolate_cubic1DF

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NAME

  Interpolate_cubic1DF

SYNOPSIS

  Interpolate_cubic1DF (real, intent (in) :: a (1:4),
                        real, intent (in) :: x)

DESCRIPTION

  Calculates the function value for a single [x] rescaled [0,1] coordinate and the
  4 monocubic expansion coefficients. The monocubic expansion reads, for one line,
  in terms of the rescaled [0,1] x coordinate:

                                 3          i
                        F (x) = sum  a (i) x
                                i=0

  The location index of the a (i) inside the 4-dimensional vector is:

                location index of a (i)  =  1 + i

ARGUMENTS

  a (i) : the i-th monocubic expansion coefficient
  x     : rescaled [0,1] x coordinate

NOTES

  1) The code checks, if the supplied coordinate [x] is rescaled.