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DCL:MATH2:INTRLIB: Interpolation: Explanation of Subroutines

6.3.1 VRINTR

1.

Function

This subroutines interpolates the floating-point part of elements in a floating-point array (r_i), which is equivalent to the internal variable 'RMISS' handled by GLpGET/GLpSET  (see MATH1). The (linear) interpolation is made to satisfy he condition of r_i+1 = r_i + r_c (where r_c is a floating-point constant).

2.

Call

CALL VRINTR(RX,N,JX)

3.

Explnation of Parameters

RX	(R)	Floating-point array for interpolation. It is both the input and output parameter.
N	(I)	The number of array elements in interpolation.
JX	(I)	The interval of the array elements in interpolation.

4.

Notes

(a)

When a floating-point value expressed by 'RMISS' is present either at the beginning or end of the data array to interpolate, that part is skipped.