Fix incorrect code ffabs() call to fabs()

hollasch · hollasch · commit 160010e8acf5 · 2020-05-02T15:23:14.000-07:00
Resolves #491
diff --git a/books/RayTracingTheNextWeek.html b/books/RayTracingTheNextWeek.html
@@ -1591,7 +1591,7 @@
                     temp_p *= 2;
                 }
 
-                return ffabs(accum);
+                return fabs(accum);
             }
             ...
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
