From 6bf4b90c90f15f4ab60833bddf5b5756d1a6b1f6 Mon Sep 17 00:00:00 2001 From: Elizabeth Alexander Hunt Date: Thu, 2 Jul 2026 11:55:17 -0700 Subject: Init --- Homework/math4610/deprecated-cl/tests,maceps.lisp | 27 +++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Homework/math4610/deprecated-cl/tests,maceps.lisp (limited to 'Homework/math4610/deprecated-cl/tests,maceps.lisp') diff --git a/Homework/math4610/deprecated-cl/tests,maceps.lisp b/Homework/math4610/deprecated-cl/tests,maceps.lisp new file mode 100644 index 0000000..cd5ced9 --- /dev/null +++ b/Homework/math4610/deprecated-cl/tests,maceps.lisp @@ -0,0 +1,27 @@ +(defpackage lizfcm/tests.maceps + (:use :cl + :fiveam + :lizfcm.approx + :lizfcm.utils + :lizfcm/tests) + (:export :approx-suite)) +(in-package :lizfcm/tests.maceps) + +(def-suite maceps-suite + :in lizfcm-test-suite) +(in-suite maceps-suite) + +(test maceps + :description "double precision provides precision about (mac eps of single precision) squared" + (let* ((maceps-computation-double (compute-maceps (lambda (x) x) + 1.0d0 + 1.0d0)) + (maceps-computation-single (compute-maceps (lambda (x) x) + 1.0 + 1.0)) + (last-double-h (cadar (last maceps-computation-double))) + (last-single-h (cadar (last maceps-computation-single)))) + (is (within-range-p + (- last-double-h (* last-single-h last-single-h)) + 0 + last-single-h)))) -- cgit v1.3