From 1a8c81d07efe55c5a6909aff32359d4b8866af1c Mon Sep 17 00:00:00 2001
From: Elizabeth Hunt <elizabeth.hunt@simponic.xyz>
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 ---------
 cl/src/approx/maceps.lisp     | 11 -----------
 cl/src/approx/package.lisp    |  5 -----
 3 files changed, 25 deletions(-)
 delete mode 100644 cl/src/approx/derivative.lisp
 delete mode 100644 cl/src/approx/maceps.lisp
 delete mode 100644 cl/src/approx/package.lisp

(limited to 'cl/src/approx')

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))))
diff --git a/cl/src/approx/maceps.lisp b/cl/src/approx/maceps.lisp
deleted file mode 100644
index ad234e8..0000000
--- a/cl/src/approx/maceps.lisp
+++ /dev/null
@@ -1,11 +0,0 @@
-(in-package :lizfcm.approx)
-
-(defun compute-maceps (f a init)
-  (let ((h init)
-        (err init))
-    (loop while (> err 0)
-          do
-          (setf h (/ h 2)
-                err (abs (- (funcall f (+ a h))
-                            (funcall f a))))
-          collect (list a h err))))
diff --git a/cl/src/approx/package.lisp b/cl/src/approx/package.lisp
deleted file mode 100644
index c11eb60..0000000
--- a/cl/src/approx/package.lisp
+++ /dev/null
@@ -1,5 +0,0 @@
-(in-package :cl-user)
-(defpackage lizfcm.approx
-  (:use :cl)
-  (:export :derivative-at
-           :compute-maceps))
-- 
cgit v1.2.3-70-g09d2