From 1a8c81d07efe55c5a6909aff32359d4b8866af1c Mon Sep 17 00:00:00 2001 From: Elizabeth Hunt Date: Wed, 27 Sep 2023 09:53:37 -0600 Subject: keep unit tests but make directory structure more consistent with requirements i did not read --- cl/src/approx/derivative.lisp | 9 --------- 1 file changed, 9 deletions(-) delete mode 100644 cl/src/approx/derivative.lisp (limited to 'cl/src/approx/derivative.lisp') diff --git a/cl/src/approx/derivative.lisp b/cl/src/approx/derivative.lisp deleted file mode 100644 index 02fcb4c..0000000 --- a/cl/src/approx/derivative.lisp +++ /dev/null @@ -1,9 +0,0 @@ -(in-package :lizfcm.approx) - -(defun derivative-at (f x &optional (delta 0.01)) - (let* ((x2 (+ x delta)) - (x1 (- x delta)) - (y2 (apply f (list x2))) - (y1 (apply f (list x1)))) - (/ (- y2 y1) - (- x2 x1)))) -- cgit v1.3