diff --git a/dart_compressed.js b/dart_compressed.js
index 11cd1c863..7e5976da6 100644
--- a/dart_compressed.js
+++ b/dart_compressed.js
@@ -39,7 +39,7 @@ Blockly.Dart.controls_for=function(a){var b=Blockly.Dart.variableDB_.getName(a.g
 parseFloat(d);a="for ("+b+" = "+c+"; "+b+(g?" <= ":" >= ")+d+"; "+b;b=Math.abs(parseFloat(e));a=(1==b?a+(g?"++":"--"):a+((g?" += ":" -= ")+b))+(") {\n"+f+"}\n")}else a="",g=c,c.match(/^\w+$/)||Blockly.isNumber(c)||(g=Blockly.Dart.variableDB_.getDistinctName(b+"_start",Blockly.Variables.NAME_TYPE),a+="var "+g+" = "+c+";\n"),c=d,d.match(/^\w+$/)||Blockly.isNumber(d)||(c=Blockly.Dart.variableDB_.getDistinctName(b+"_end",Blockly.Variables.NAME_TYPE),a+="var "+c+" = "+d+";\n"),d=Blockly.Dart.variableDB_.getDistinctName(b+
 "_inc",Blockly.Variables.NAME_TYPE),a+="num "+d+" = ",a=Blockly.isNumber(e)?a+(Math.abs(e)+";\n"):a+("("+e+").abs();\n"),a+="if ("+g+" > "+c+") {\n",a+=Blockly.Dart.INDENT+d+" = -"+d+";\n",a+="}\n",a+="for ("+b+" = "+g+";\n     "+d+" >= 0 ? "+b+" <= "+c+" : "+b+" >= "+c+";\n     "+b+" += "+d+") {\n"+f+"}\n";return a};
 Blockly.Dart.controls_forEach=function(a){var b=Blockly.Dart.variableDB_.getName(a.getFieldValue("VAR"),Blockly.Variables.NAME_TYPE),c=Blockly.Dart.valueToCode(a,"LIST",Blockly.Dart.ORDER_ASSIGNMENT)||"[]",d=Blockly.Dart.statementToCode(a,"DO"),d=Blockly.Dart.addLoopTrap(d,a.id);return"for (var "+b+" in "+c+") {\n"+d+"}\n"};
-Blockly.Dart.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break;\n";case "CONTINUE":return"continue;\n"}throw"Unknown flow statement.";};Blockly.Dart.math={};Blockly.Dart.addReservedWords("Math");Blockly.Dart.math_number=function(a){a=window.parseFloat(a.getFieldValue("NUM"));return[a,0>a?Blockly.Dart.ORDER_UNARY_PREFIX:Blockly.Dart.ORDER_ATOMIC]};
+Blockly.Dart.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break;\n";case "CONTINUE":return"continue;\n"}throw"Unknown flow statement.";};Blockly.Dart.math={};Blockly.Dart.addReservedWords("Math");Blockly.Dart.math_number=function(a){a=parseFloat(a.getFieldValue("NUM"));var b;Infinity==a?(a="double.INFINITY",b=Blockly.Dart.ORDER_UNARY_POSTFIX):-Infinity==a?(a="-double.INFINITY",b=Blockly.Dart.ORDER_UNARY_PREFIX):b=0>a?Blockly.Dart.ORDER_UNARY_PREFIX:Blockly.Dart.ORDER_ATOMIC;return[a,b]};
 Blockly.Dart.math_arithmetic=function(a){var b={ADD:[" + ",Blockly.Dart.ORDER_ADDITIVE],MINUS:[" - ",Blockly.Dart.ORDER_ADDITIVE],MULTIPLY:[" * ",Blockly.Dart.ORDER_MULTIPLICATIVE],DIVIDE:[" / ",Blockly.Dart.ORDER_MULTIPLICATIVE],POWER:[null,Blockly.Dart.ORDER_NONE]}[a.getFieldValue("OP")],c=b[0],b=b[1],d=Blockly.Dart.valueToCode(a,"A",b)||"0";a=Blockly.Dart.valueToCode(a,"B",b)||"0";return c?[d+c+a,b]:(Blockly.Dart.definitions_.import_dart_math="import 'dart:math' as Math;",["Math.pow("+d+", "+a+
 ")",Blockly.Dart.ORDER_UNARY_POSTFIX])};
 Blockly.Dart.math_single=function(a){var b=a.getFieldValue("OP"),c;if("NEG"==b)return a=Blockly.Dart.valueToCode(a,"NUM",Blockly.Dart.ORDER_UNARY_PREFIX)||"0","-"==a[0]&&(a=" "+a),["-"+a,Blockly.Dart.ORDER_UNARY_PREFIX];Blockly.Dart.definitions_.import_dart_math="import 'dart:math' as Math;";a="ABS"==b||"ROUND"==b.substring(0,5)?Blockly.Dart.valueToCode(a,"NUM",Blockly.Dart.ORDER_UNARY_POSTFIX)||"0":"SIN"==b||"COS"==b||"TAN"==b?Blockly.Dart.valueToCode(a,"NUM",Blockly.Dart.ORDER_MULTIPLICATIVE)||
diff --git a/generators/dart/math.js b/generators/dart/math.js
index 5eb327e2d..aae008a2c 100644
--- a/generators/dart/math.js
+++ b/generators/dart/math.js
@@ -33,11 +33,20 @@ Blockly.Dart.addReservedWords('Math');
 
 Blockly.Dart['math_number'] = function(block) {
   // Numeric value.
-  var code = window.parseFloat(block.getFieldValue('NUM'));
-  // -4.abs() returns -4 in Dart due to strange order of operation choices.
-  // -4 is actually an operator and a number.  Reflect this in the order.
-  var order = code < 0 ?
-      Blockly.Dart.ORDER_UNARY_PREFIX : Blockly.Dart.ORDER_ATOMIC;
+  var code = parseFloat(block.getFieldValue('NUM'));
+  var order;
+  if (code == Infinity) {
+    code = 'double.INFINITY';
+    order = Blockly.Dart.ORDER_UNARY_POSTFIX;
+  } else if (code == -Infinity) {
+    code = '-double.INFINITY';
+    order = Blockly.Dart.ORDER_UNARY_PREFIX;
+  } else {
+    // -4.abs() returns -4 in Dart due to strange order of operation choices.
+    // -4 is actually an operator and a number.  Reflect this in the order.
+    order = code < 0 ?
+        Blockly.Dart.ORDER_UNARY_PREFIX : Blockly.Dart.ORDER_ATOMIC;
+  }
   return [code, order];
 };
 
diff --git a/generators/php/math.js b/generators/php/math.js
index 0f52996ea..f0bb9fa79 100644
--- a/generators/php/math.js
+++ b/generators/php/math.js
@@ -32,6 +32,11 @@ goog.require('Blockly.PHP');
 Blockly.PHP['math_number'] = function(block) {
   // Numeric value.
   var code = parseFloat(block.getFieldValue('NUM'));
+  if (code == Infinity) {
+    code = 'INF';
+  } else if (code == -Infinity) {
+    code = '-INF';
+  }
   return [code, Blockly.PHP.ORDER_ATOMIC];
 };
 
diff --git a/generators/python/math.js b/generators/python/math.js
index bcc1406a0..2514d6491 100644
--- a/generators/python/math.js
+++ b/generators/python/math.js
@@ -35,8 +35,17 @@ Blockly.Python.addReservedWords('math,random');
 Blockly.Python['math_number'] = function(block) {
   // Numeric value.
   var code = parseFloat(block.getFieldValue('NUM'));
-  var order = code < 0 ? Blockly.Python.ORDER_UNARY_SIGN :
-              Blockly.Python.ORDER_ATOMIC;
+  var order;
+  if (code == Infinity) {
+    code = 'float("inf")';
+    order = Blockly.Python.ORDER_FUNCTION_CALL;
+  } else if (code == -Infinity) {
+    code = '-float("inf")';
+    order = Blockly.Python.ORDER_UNARY_SIGN;
+  } else {
+    order = code < 0 ? Blockly.Python.ORDER_UNARY_SIGN :
+            Blockly.Python.ORDER_ATOMIC;
+  }
   return [code, order];
 };
 
diff --git a/php_compressed.js b/php_compressed.js
index f0718b31a..946cee60b 100644
--- a/php_compressed.js
+++ b/php_compressed.js
@@ -40,7 +40,7 @@ Blockly.PHP.controls_for=function(a){var b=Blockly.PHP.variableDB_.getName(a.get
 a="for ("+b+" = "+c+"; "+b+(f?" <= ":" >= ")+d+"; "+b;b=Math.abs(parseFloat(e));a=(1==b?a+(f?"++":"--"):a+((f?" += ":" -= ")+b))+(") {\n"+g+"}\n")}else a="",f=c,c.match(/^\w+$/)||Blockly.isNumber(c)||(f=Blockly.PHP.variableDB_.getDistinctName(b+"_start",Blockly.Variables.NAME_TYPE),a+=f+" = "+c+";\n"),c=d,d.match(/^\w+$/)||Blockly.isNumber(d)||(c=Blockly.PHP.variableDB_.getDistinctName(b+"_end",Blockly.Variables.NAME_TYPE),a+=c+" = "+d+";\n"),d=Blockly.PHP.variableDB_.getDistinctName(b+"_inc",Blockly.Variables.NAME_TYPE),
 a+=d+" = ",a=Blockly.isNumber(e)?a+(Math.abs(e)+";\n"):a+("abs("+e+");\n"),a+="if ("+f+" > "+c+") {\n",a+=Blockly.PHP.INDENT+d+" = -"+d+";\n",a+="}\n",a+="for ("+b+" = "+f+";\n     "+d+" >= 0 ? "+b+" <= "+c+" : "+b+" >= "+c+";\n     "+b+" += "+d+") {\n"+g+"}\n";return a};
 Blockly.PHP.controls_forEach=function(a){var b=Blockly.PHP.variableDB_.getName(a.getFieldValue("VAR"),Blockly.Variables.NAME_TYPE),c=Blockly.PHP.valueToCode(a,"LIST",Blockly.PHP.ORDER_ASSIGNMENT)||"[]",d=Blockly.PHP.statementToCode(a,"DO"),d=Blockly.PHP.addLoopTrap(d,a.id);return""+("foreach ("+c+" as "+b+") {\n"+d+"}\n")};
-Blockly.PHP.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break;\n";case "CONTINUE":return"continue;\n"}throw"Unknown flow statement.";};Blockly.PHP.math={};Blockly.PHP.math_number=function(a){return[parseFloat(a.getFieldValue("NUM")),Blockly.PHP.ORDER_ATOMIC]};
+Blockly.PHP.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break;\n";case "CONTINUE":return"continue;\n"}throw"Unknown flow statement.";};Blockly.PHP.math={};Blockly.PHP.math_number=function(a){a=parseFloat(a.getFieldValue("NUM"));Infinity==a?a="INF":-Infinity==a&&(a="-INF");return[a,Blockly.PHP.ORDER_ATOMIC]};
 Blockly.PHP.math_arithmetic=function(a){var b={ADD:[" + ",Blockly.PHP.ORDER_ADDITION],MINUS:[" - ",Blockly.PHP.ORDER_SUBTRACTION],MULTIPLY:[" * ",Blockly.PHP.ORDER_MULTIPLICATION],DIVIDE:[" / ",Blockly.PHP.ORDER_DIVISION],POWER:[null,Blockly.PHP.ORDER_COMMA]}[a.getFieldValue("OP")],c=b[0],b=b[1],d=Blockly.PHP.valueToCode(a,"A",b)||"0";a=Blockly.PHP.valueToCode(a,"B",b)||"0";return c?[d+c+a,b]:["pow("+d+", "+a+")",Blockly.PHP.ORDER_FUNCTION_CALL]};
 Blockly.PHP.math_single=function(a){var b=a.getFieldValue("OP"),c;if("NEG"==b)return a=Blockly.PHP.valueToCode(a,"NUM",Blockly.PHP.ORDER_UNARY_NEGATION)||"0","-"==a[0]&&(a=" "+a),["-"+a,Blockly.PHP.ORDER_UNARY_NEGATION];a="SIN"==b||"COS"==b||"TAN"==b?Blockly.PHP.valueToCode(a,"NUM",Blockly.PHP.ORDER_DIVISION)||"0":Blockly.PHP.valueToCode(a,"NUM",Blockly.PHP.ORDER_NONE)||"0";switch(b){case "ABS":c="abs("+a+")";break;case "ROOT":c="sqrt("+a+")";break;case "LN":c="log("+a+")";break;case "EXP":c="exp("+
 a+")";break;case "POW10":c="pow(10,"+a+")";break;case "ROUND":c="round("+a+")";break;case "ROUNDUP":c="ceil("+a+")";break;case "ROUNDDOWN":c="floor("+a+")";break;case "SIN":c="sin("+a+" / 180 * pi())";break;case "COS":c="cos("+a+" / 180 * pi())";break;case "TAN":c="tan("+a+" / 180 * pi())"}if(c)return[c,Blockly.PHP.ORDER_FUNCTION_CALL];switch(b){case "LOG10":c="log("+a+") / log(10)";break;case "ASIN":c="asin("+a+") / pi() * 180";break;case "ACOS":c="acos("+a+") / pi() * 180";break;case "ATAN":c="atan("+
diff --git a/python_compressed.js b/python_compressed.js
index 96c8c0fe2..d14d3d86c 100644
--- a/python_compressed.js
+++ b/python_compressed.js
@@ -38,7 +38,7 @@ Blockly.Python.controls_for=function(a){var b=Blockly.Python.variableDB_.getName
 ["def "+Blockly.Python.FUNCTION_NAME_PLACEHOLDER_+"(start, stop, step):","  while start <= stop:","    yield start","    start += abs(step)"])},k=function(){return Blockly.Python.provideFunction_("downRange",["def "+Blockly.Python.FUNCTION_NAME_PLACEHOLDER_+"(start, stop, step):","  while start >= stop:","    yield start","    start -= abs(step)"])};a=function(a,b,c){return"("+a+" <= "+b+") and "+h()+"("+a+", "+b+", "+c+") or "+k()+"("+a+", "+b+", "+c+")"};if(Blockly.isNumber(c)&&Blockly.isNumber(d)&&
 Blockly.isNumber(e))c=parseFloat(c),d=parseFloat(d),e=Math.abs(parseFloat(e)),0===c%1&&0===d%1&&0===e%1?(c<=d?(d++,a=0==c&&1==e?d:c+", "+d,1!=e&&(a+=", "+e)):(d--,a=c+", "+d+", -"+e),a="range("+a+")"):(a=c<d?h():k(),a+="("+c+", "+d+", "+e+")");else{var l=function(a,c){if(Blockly.isNumber(a))a=parseFloat(a);else if(a.match(/^\w+$/))a="float("+a+")";else{var d=Blockly.Python.variableDB_.getDistinctName(b+c,Blockly.Variables.NAME_TYPE);f+=d+" = float("+a+")\n";a=d}return a},c=l(c,"_start"),d=l(d,"_end");
 l(e,"_inc");a="number"==typeof c&&"number"==typeof d?c<d?h(c,d,e):k(c,d,e):a(c,d,e)}return f+="for "+b+" in "+a+":\n"+g};Blockly.Python.controls_forEach=function(a){var b=Blockly.Python.variableDB_.getName(a.getFieldValue("VAR"),Blockly.Variables.NAME_TYPE),c=Blockly.Python.valueToCode(a,"LIST",Blockly.Python.ORDER_RELATIONAL)||"[]",d=Blockly.Python.statementToCode(a,"DO"),d=Blockly.Python.addLoopTrap(d,a.id)||Blockly.Python.PASS;return"for "+b+" in "+c+":\n"+d};
-Blockly.Python.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break\n";case "CONTINUE":return"continue\n"}throw"Unknown flow statement.";};Blockly.Python.math={};Blockly.Python.addReservedWords("math,random");Blockly.Python.math_number=function(a){a=parseFloat(a.getFieldValue("NUM"));return[a,0>a?Blockly.Python.ORDER_UNARY_SIGN:Blockly.Python.ORDER_ATOMIC]};
+Blockly.Python.controls_flow_statements=function(a){switch(a.getFieldValue("FLOW")){case "BREAK":return"break\n";case "CONTINUE":return"continue\n"}throw"Unknown flow statement.";};Blockly.Python.math={};Blockly.Python.addReservedWords("math,random");Blockly.Python.math_number=function(a){a=parseFloat(a.getFieldValue("NUM"));var b;Infinity==a?(a='float("inf")',b=Blockly.Python.ORDER_FUNCTION_CALL):-Infinity==a?(a='-float("inf")',b=Blockly.Python.ORDER_UNARY_SIGN):b=0>a?Blockly.Python.ORDER_UNARY_SIGN:Blockly.Python.ORDER_ATOMIC;return[a,b]};
 Blockly.Python.math_arithmetic=function(a){var b={ADD:[" + ",Blockly.Python.ORDER_ADDITIVE],MINUS:[" - ",Blockly.Python.ORDER_ADDITIVE],MULTIPLY:[" * ",Blockly.Python.ORDER_MULTIPLICATIVE],DIVIDE:[" / ",Blockly.Python.ORDER_MULTIPLICATIVE],POWER:[" ** ",Blockly.Python.ORDER_EXPONENTIATION]}[a.getFieldValue("OP")],c=b[0],b=b[1],d=Blockly.Python.valueToCode(a,"A",b)||"0";a=Blockly.Python.valueToCode(a,"B",b)||"0";return[d+c+a,b]};
 Blockly.Python.math_single=function(a){var b=a.getFieldValue("OP"),c;if("NEG"==b)return c=Blockly.Python.valueToCode(a,"NUM",Blockly.Python.ORDER_UNARY_SIGN)||"0",["-"+c,Blockly.Python.ORDER_UNARY_SIGN];Blockly.Python.definitions_.import_math="import math";a="SIN"==b||"COS"==b||"TAN"==b?Blockly.Python.valueToCode(a,"NUM",Blockly.Python.ORDER_MULTIPLICATIVE)||"0":Blockly.Python.valueToCode(a,"NUM",Blockly.Python.ORDER_NONE)||"0";switch(b){case "ABS":c="math.fabs("+a+")";break;case "ROOT":c="math.sqrt("+
 a+")";break;case "LN":c="math.log("+a+")";break;case "LOG10":c="math.log10("+a+")";break;case "EXP":c="math.exp("+a+")";break;case "POW10":c="math.pow(10,"+a+")";break;case "ROUND":c="round("+a+")";break;case "ROUNDUP":c="math.ceil("+a+")";break;case "ROUNDDOWN":c="math.floor("+a+")";break;case "SIN":c="math.sin("+a+" / 180.0 * math.pi)";break;case "COS":c="math.cos("+a+" / 180.0 * math.pi)";break;case "TAN":c="math.tan("+a+" / 180.0 * math.pi)"}if(c)return[c,Blockly.Python.ORDER_FUNCTION_CALL];switch(b){case "ASIN":c=