**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.

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The Flash Center for Computational Science is based at the University of Chicago and is supported by U.S. DOE and NSF.