Merge pull request #6 from GeorchW/unicode-var-names

Fix unicode variable names

Author: archmoj

src/geom/voronoi/cell.js

@@ -1,6 +1,6 @@
 import "../../math/abs";
 
-function d3_geom_voronoiCell(site) {
+function d3_geom_voronoiCell(site) {
   this.site = site;
   this.edges = [];
 }

src/math/random.js

@@ -1,16 +1,16 @@
 d3.random = {
-  normal: function(µ, σ) {
+  normal: function(mu, sigma) {
     var n = arguments.length;
-    if (n < 2) σ = 1;
-    if (n < 1) µ = 0;
+    if (n < 2) sigma = 1;
+    if (n < 1) mu = 0;
     return function() {
       var x, y, r;
       do {
         x = Math.random() * 2 - 1;
         y = Math.random() * 2 - 1;
         r = x * x + y * y;
       } while (!r || r > 1);
-      return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
+      return mu + sigma * x * Math.sqrt(-2 * Math.log(r) / r);
     };
   },
   logNormal: function() {