From 274fa502e35eb86ed87be02c5b4338d77357e5dd Mon Sep 17 00:00:00 2001
From: rxg <ron.garcia@gmail.com>
Date: Thu, 20 Dec 2018 15:33:03 -0500
Subject: [PATCH] update to cholesky: make-matrix no longer 0x0 dimensions

Since the 0-size matrix is just a type-filler, it's safe to pass in a 1x1 matrix, though sketchy.
Code-as-is signals a runtime error.
---
 cholesky.rkt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cholesky.rkt b/cholesky.rkt
index e48b3e5..6d5430b 100644
--- a/cholesky.rkt
+++ b/cholesky.rkt
@@ -61,7 +61,7 @@
 
   (for*/fold: : [Matrix Real]
               ([L : [Matrix Real] (build-cholesky-column A
-                                                         (make-matrix 0 0 0)
+                                                         (make-matrix 1 1 0)
                                                          0
                                                          n)])
               ([k : Natural (in-range 1 n)])