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authorElizabeth Hunt <elizabeth.hunt@simponic.xyz>2023-10-09 21:37:44 -0600
committerElizabeth Hunt <elizabeth.hunt@simponic.xyz>2023-10-09 21:37:44 -0600
commite46e5eee74af75aa1123b2370ff2f4587f4adc2a (patch)
treeae793dd22176613282e41ce6d15f481c072a8a57 /src/approx,maceps.lisp
parentadda6869cb2a07984b48c39fcd70ee76449c353d (diff)
downloadcmath-e46e5eee74af75aa1123b2370ff2f4587f4adc2a.tar.gz
cmath-e46e5eee74af75aa1123b2370ff2f4587f4adc2a.zip
flatten directory structure to appease dr koebbe
Diffstat (limited to 'src/approx,maceps.lisp')
-rw-r--r--src/approx,maceps.lisp12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/approx,maceps.lisp b/src/approx,maceps.lisp
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+(in-package :lizfcm.approx)
+
+(defun compute-maceps (f a init)
+ (let ((h init)
+ (err init))
+ (loop collect (list a h err)
+ do
+ (setf h (/ h 2)
+ err (abs (- (funcall f (+ a h))
+ (funcall f a))))
+ while (> err 0))))
+