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DCL:MATH２:INTRLIB: Interpolation: Explanation of Subroutines

6.3.2 VCINTR

1.

Function

This subroutines interpolates floating-point values of both the floating-point and imaginary parts of elements in a complex array (z_i), which are equivalent to the internal variable 'RMISS' handled by GLpGET/GLpSET (see MATH1). The interpolation is made to satisfy the condition of z_i+1 = z_cz_i (where z_c is a complex constant).

2.

Call

CALL VCINTR(CX,N,JX)

3.

Explanation of Parameters

CX	(C)	Complex 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 complex value expressed by 'RMISS' is present in both the floating-point and imaginary part at the beginning or end of the data array to interpolate, that part is skipped.