add september notes & hw2 code / pdf

1 files changed, 31 insertions, 0 deletions

diff --git a/cl/tests/vector.lisp b/cl/tests/vector.lisp
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+++ b/cl/tests/vector.lisp
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+(defpackage lizfcm/tests.vector
+  (:use :cl
+        :fiveam
+        :lizfcm.vector
+        :lizfcm.utils
+        :lizfcm/tests)
+  (:export :vector-suite))
+(in-package :lizfcm/tests.vector)
+
+(def-suite vector-suite
+           :in lizfcm-test-suite)
+(in-suite vector-suite)
+
+(test p-norm
+      :description "computes p-norm"
+      (let ((v '(1 1))
+            (length (sqrt 2))
+            (2-norm (p-norm 2)))
+        (is (within-range-p (funcall 2-norm v)
+                            length
+                            0.00001))))
+
+(test vector-distance
+      :description "computes distance via norm"
+      (let ((v1 '(0 0))
+            (v2 '(1 1))
+            (dist (sqrt 2)))
+        (is (within-range-p (distance v1 v2 (p-norm 2))
+                            dist
+                            0.00001))))
+