Bounds are closed intervals

[inverse-tax] / tax.js

diff --git a/tax.js b/tax.js
index cd0027a1475930802935b28e34cba14597ea5fa5..f3d2406cce017d7fbb7b9056d2be507b7b3f5990 100644 (file)
--- a/tax.js
+++ b/tax.js
@@ -84,7 +84,7 @@ function invert(table) {
   });
   return function(net) {
     for (const [start, end, m, b] of inverse_table) {
-      if (start < net && net < end) {
+      if (start <= net && net <= end) {
         return (net - b) / m;
       }
     }