interpolate

Type:	-	Lisp function (closure)
Source:	-	xm.lsp

Syntax

In Nyquist, 'interpolate' is implemented as a Lisp function:

(defun interpolate (x x1 y1 x2 y2)
  (cond ((= x1 x2) x1)
        (t (+ y1 (* (- x x1) (/ (- y2 y1) (- x2 (float x1))))))))

Description

The 'interpolate' function linearly interpolates [or extrapolates] between points (x1, y1) and (x2, y2) to compute the 'y' value corresponding to 'x'.

Examples

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