diff --git a/bits/60_number.js b/bits/60_number.js
index 5d13dfc..655f5bc 100644
--- a/bits/60_number.js
+++ b/bits/60_number.js
@@ -51,7 +51,24 @@ function hashq(str/*:string*/)/*:string*/ {
 	}
 	return o;
 }
-function rnd(val/*:number*/, d/*:number*/)/*:string*/ { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
+function rnd(val/*:number*/, d/*:number*/)/*:string*/ { 
+	var result
+	if(("" + val).indexOf("e") === -1) {
+		result = +(Math.round(val + "e+" + d)  + "e-" + d);
+	} else {
+		var arr = ("" + val).split("e");
+		var sig = ""
+		if(+arr[1] + d > 0) {
+			sig = "+";
+		}
+		result = +(Math.round(+arr[0] + "e" + sig + (+arr[1] + d)) + "e-" + d);
+	}
+	if (isNaN(result)) {
+		var dd = Math.pow(10, d);
+		result = Math.round(val * dd) / dd;
+	}
+	return "" + result
+}
 function dec(val/*:number*/, d/*:number*/)/*:number*/ {
 	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
 		return 0;
diff --git a/ssf.flow.js b/ssf.flow.js
index dd0607b..89c5bef 100644
--- a/ssf.flow.js
+++ b/ssf.flow.js
@@ -312,7 +312,24 @@ function hashq(str/*:string*/)/*:string*/ {
 	}
 	return o;
 }
-function rnd(val/*:number*/, d/*:number*/)/*:string*/ { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
+function rnd(val/*:number*/, d/*:number*/)/*:string*/ { 
+	var result
+	if(("" + val).indexOf("e") === -1) {
+		result = +(Math.round(val + "e+" + d)  + "e-" + d);
+	} else {
+		var arr = ("" + val).split("e");
+		var sig = ""
+		if(+arr[1] + d > 0) {
+			sig = "+";
+		}
+		result = +(Math.round(+arr[0] + "e" + sig + (+arr[1] + d)) + "e-" + d);
+	}
+	if (isNaN(result)) {
+		var dd = Math.pow(10, d);
+		result = Math.round(val * dd) / dd;
+	}
+	return "" + result
+}
 function dec(val/*:number*/, d/*:number*/)/*:number*/ {
 	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
 		return 0;
diff --git a/ssf.js b/ssf.js
index cc86fea..a54da6f 100644
--- a/ssf.js
+++ b/ssf.js
@@ -307,7 +307,24 @@ function hashq(str) {
 	}
 	return o;
 }
-function rnd(val, d) { var dd = Math.pow(10,d); return ""+(Math.round(val * dd)/dd); }
+function rnd(val, d) { 
+	var result
+	if(("" + val).indexOf("e") === -1) {
+		result = +(Math.round(val + "e+" + d)  + "e-" + d);
+	} else {
+		var arr = ("" + val).split("e");
+		var sig = ""
+		if(+arr[1] + d > 0) {
+			sig = "+";
+		}
+		result = +(Math.round(+arr[0] + "e" + sig + (+arr[1] + d)) + "e-" + d);
+	}
+	if (isNaN(result)) {
+		var dd = Math.pow(10, d);
+		result = Math.round(val * dd) / dd;
+	}
+	return "" + result
+}
 function dec(val, d) {
 	if (d < ('' + Math.round((val-Math.floor(val))*Math.pow(10,d))).length) {
 		return 0;
diff --git a/test/comma.tsv b/test/comma.tsv
index dee043e..ec38799 100644
--- a/test/comma.tsv
+++ b/test/comma.tsv
@@ -14,3 +14,5 @@ value	#.0000,,,	#.0000,,	#.0000,	#,##0.0	###,##0	###,###	#,###.00
 123456789012	123.4568	123456.7890	123456789.0120	123,456,789,012.0	123,456,789,012	123,456,789,012	123,456,789,012.00
 4321	.0000	.0043	4.3210	4,321.0	4,321	4,321	4,321.00
 4321234	.0043	4.3212	4321.2340	4,321,234.0	4,321,234	4,321,234	4,321,234.00
+1234652.68499999999995	.0012	1.2347	1234.6527	1,234,652.7	1,234,653	1,234,653	1,234,652.69
+-4321234	-0.0043	-4.3212	-4321.2340	-4,321,234.0	-4,321,234	-4,321,234	-4,321,234.00