diff --git a/res/drawable-ldpi/copy.png b/res/drawable-ldpi/copy.png
index 34b0283b..5312f578 100644
Binary files a/res/drawable-ldpi/copy.png and b/res/drawable-ldpi/copy.png differ
diff --git a/res/drawable-ldpi/heart.png b/res/drawable-ldpi/heart.png
index b4608722..5e43812b 100644
Binary files a/res/drawable-ldpi/heart.png and b/res/drawable-ldpi/heart.png differ
diff --git a/res/drawable-ldpi/logo.png b/res/drawable-ldpi/logo.png
index 9d2d600d..b1db1e2d 100644
Binary files a/res/drawable-ldpi/logo.png and b/res/drawable-ldpi/logo.png differ
diff --git a/res/drawable-ldpi/paste.png b/res/drawable-ldpi/paste.png
index f4764680..7d05b9dd 100644
Binary files a/res/drawable-ldpi/paste.png and b/res/drawable-ldpi/paste.png differ
diff --git a/res/drawable-ldpi/sym_keyboard_delete.png b/res/drawable-ldpi/sym_keyboard_delete.png
index f02cef88..2403bbbd 100644
Binary files a/res/drawable-ldpi/sym_keyboard_delete.png and b/res/drawable-ldpi/sym_keyboard_delete.png differ
diff --git a/res/drawable-mdpi/copy.png b/res/drawable-mdpi/copy.png
index 34b0283b..fcc9166d 100644
Binary files a/res/drawable-mdpi/copy.png and b/res/drawable-mdpi/copy.png differ
diff --git a/res/drawable-mdpi/heart.png b/res/drawable-mdpi/heart.png
index b4608722..1e0d1811 100644
Binary files a/res/drawable-mdpi/heart.png and b/res/drawable-mdpi/heart.png differ
diff --git a/res/drawable-mdpi/logo.png b/res/drawable-mdpi/logo.png
index 9d2d600d..4a3a3301 100644
Binary files a/res/drawable-mdpi/logo.png and b/res/drawable-mdpi/logo.png differ
diff --git a/res/drawable-mdpi/paste.png b/res/drawable-mdpi/paste.png
index f4764680..99b3e090 100644
Binary files a/res/drawable-mdpi/paste.png and b/res/drawable-mdpi/paste.png differ
diff --git a/res/drawable-mdpi/sym_keyboard_delete.png b/res/drawable-mdpi/sym_keyboard_delete.png
index f02cef88..b6643eec 100644
Binary files a/res/drawable-mdpi/sym_keyboard_delete.png and b/res/drawable-mdpi/sym_keyboard_delete.png differ
diff --git a/res/values-ldpi/styles.xml b/res/values-ldpi/styles.xml
index b2bfc0cc..02329a74 100644
--- a/res/values-ldpi/styles.xml
+++ b/res/values-ldpi/styles.xml
@@ -12,26 +12,26 @@
 	</style>
 
 	<style name="display_style_parent" parent="default_text">
-		<item name="android:textSize">50dp</item>
-		<item name="android:padding">10dp</item>
+		<item name="android:textSize">35dp</item>
+		<item name="android:padding">5dp</item>
 	</style>
 
 	<style name="editor_style_parent" parent="default_text">
-		<item name="android:textSize">50dp</item>
-		<item name="android:padding">10dp</item>
+		<item name="android:textSize">35dp</item>
+		<item name="android:padding">5dp</item>
 	</style>
 
 	<style name="about_style_parent" parent="default_text">
-		<item name="android:textSize">30dp</item>
-		<item name="android:padding">10dp</item>
+		<item name="android:textSize">15dp</item>
+		<item name="android:padding">5dp</item>
 	</style>
 
 	<style name="var_text_parent">
-		<item name="android:textSize">40dp</item>
+		<item name="android:textSize">20dp</item>
 	</style>
 
 	<style name="var_description_parent">
-		<item name="android:textSize">30dp</item>
+		<item name="android:textSize">15dp</item>
 	</style>
 
 	<style name="add_var_button_parent">
diff --git a/res/values-mdpi/styles.xml b/res/values-mdpi/styles.xml
index d38dc3d2..47424c42 100644
--- a/res/values-mdpi/styles.xml
+++ b/res/values-mdpi/styles.xml
@@ -12,26 +12,26 @@
 	</style>
 
 	<style name="display_style_parent" parent="default_text">
-		<item name="android:textSize">37dp</item>
-		<item name="android:padding">7dp</item>
+		<item name="android:textSize">30dp</item>
+		<item name="android:padding">5dp</item>
 	</style>
 
 	<style name="editor_style_parent" parent="default_text">
-		<item name="android:textSize">37dp</item>
-		<item name="android:padding">7dp</item>
+		<item name="android:textSize">30dp</item>
+		<item name="android:padding">5dp</item>
 	</style>
 
 	<style name="about_style_parent" parent="default_text">
-		<item name="android:textSize">23dp</item>
-		<item name="android:padding">7dp</item>
+		<item name="android:textSize">15dp</item>
+		<item name="android:padding">5dp</item>
 	</style>
 
 	<style name="var_text_parent">
-		<item name="android:textSize">30dp</item>
+		<item name="android:textSize">20dp</item>
 	</style>
 
 	<style name="var_description_parent">
-		<item name="android:textSize">23dp</item>
+		<item name="android:textSize">15dp</item>
 	</style>
 
 	<style name="add_var_button_parent">
diff --git a/src/main/java/org/solovyev/android/calculator/jscl/FromJsclNumericTextProcessor.java b/src/main/java/org/solovyev/android/calculator/jscl/FromJsclNumericTextProcessor.java
index e1c15bba..8a5957c8 100644
--- a/src/main/java/org/solovyev/android/calculator/jscl/FromJsclNumericTextProcessor.java
+++ b/src/main/java/org/solovyev/android/calculator/jscl/FromJsclNumericTextProcessor.java
@@ -13,9 +13,6 @@ import org.solovyev.android.calculator.model.CalculatorEngine;
 import org.solovyev.android.calculator.model.ParseException;
 import org.solovyev.android.calculator.model.TextProcessor;
 
-import java.math.BigDecimal;
-import java.text.DecimalFormat;
-
 /**
  * User: serso
  * Date: 10/6/11
@@ -32,7 +29,7 @@ class FromJsclNumericTextProcessor implements TextProcessor<String> {
 			if (doubleValue.isInfinite()) {
 				result = MathType.INFINITY;
 			} else {
-				result = format(doubleValue);
+				result = CalculatorEngine.instance.format(doubleValue);
 			}
 		} catch (NumberFormatException e) {
 			result = result.replace(MathType.INFINITY_JSCL, MathType.INFINITY);
@@ -53,18 +50,7 @@ class FromJsclNumericTextProcessor implements TextProcessor<String> {
 	}
 
 	private String format(@NotNull String value) {
-		return format(Double.valueOf(value));
-	}
-
-	private String format(@NotNull Double value) {
-		if (!value.isInfinite() && !value.isNaN()) {
-			final DecimalFormat df = new DecimalFormat();
-			df.setGroupingUsed(false);
-			df.setMaximumFractionDigits(CalculatorEngine.instance.getPrecision());
-			return df.format(new BigDecimal(value).setScale(CalculatorEngine.instance.getPrecision(), BigDecimal.ROUND_HALF_UP).doubleValue());
-		} else {
-			return String.valueOf(value);
-		}
+		return CalculatorEngine.instance.format(Double.valueOf(value));
 	}
 
 	protected String createResultForComplexNumber(@NotNull final String s) {
diff --git a/src/main/java/org/solovyev/android/calculator/model/CalculatorEngine.java b/src/main/java/org/solovyev/android/calculator/model/CalculatorEngine.java
index 146dfc2c..ee6f78a4 100644
--- a/src/main/java/org/solovyev/android/calculator/model/CalculatorEngine.java
+++ b/src/main/java/org/solovyev/android/calculator/model/CalculatorEngine.java
@@ -21,7 +21,11 @@ import org.solovyev.common.utils.CollectionsUtils;
 import org.solovyev.common.utils.Formatter;
 import org.solovyev.common.utils.MutableObject;
 
+import java.math.BigDecimal;
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
 import java.util.HashSet;
+import java.util.Locale;
 import java.util.Set;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
@@ -56,6 +60,27 @@ public enum CalculatorEngine {
 	@NotNull
 	private final static Set<String> tooLongExecutionCache = new HashSet<String>();
 
+	@NotNull
+	private DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols(Locale.getDefault());
+
+	@NotNull
+	public String format(@NotNull Double value) {
+		if (!value.isInfinite() && !value.isNaN()) {
+			final DecimalFormat df = new DecimalFormat();
+			df.setDecimalFormatSymbols(decimalGroupSymbols);
+			df.setGroupingUsed(true);
+			df.setMaximumFractionDigits(instance.getPrecision());
+			return df.format(new BigDecimal(value).setScale(instance.getPrecision(), BigDecimal.ROUND_HALF_UP).doubleValue());
+		} else {
+			return String.valueOf(value);
+		}
+	}
+
+	{
+		decimalGroupSymbols.setDecimalSeparator('.');
+		decimalGroupSymbols.setGroupingSeparator(' ');
+	}
+
 	public String evaluate(@NotNull JsclOperation operation,
 						   @NotNull String expression) throws EvalError, ParseException {
 		return evaluate(operation, expression, null);
@@ -191,6 +216,12 @@ public enum CalculatorEngine {
 		}
 	}
 
+	public void setDecimalGroupSymbols(@NotNull DecimalFormatSymbols decimalGroupSymbols) {
+		synchronized (lock) {
+			this.decimalGroupSymbols = decimalGroupSymbols;
+		}
+	}
+
 	@NotNull
 	public VarsRegister getVarsRegister() {
 		return varsRegister;
diff --git a/src/main/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessor.java b/src/main/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessor.java
index aafe567f..14f78c75 100644
--- a/src/main/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessor.java
+++ b/src/main/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessor.java
@@ -27,6 +27,9 @@ public class FromJsclSimplifyTextProcessor implements TextProcessor<String> {
 		String number = null;
 		for (int i = 0; i < s.length(); i++) {
 			char ch = s.charAt(i);
+			if ( Character.isWhitespace(ch) ) {
+				continue;
+			}
 
 			mathTypeResult = MathType.getType(s, i);
 
@@ -48,6 +51,8 @@ public class FromJsclSimplifyTextProcessor implements TextProcessor<String> {
 					}
 
 					numberBuilder = null;
+				} else {
+					number = null;
 				}
 			}
 
@@ -73,6 +78,8 @@ public class FromJsclSimplifyTextProcessor implements TextProcessor<String> {
 			}
 
 			numberBuilder = null;
+		} else {
+			number = null;
 		}
 
 		replaceSystemVars(sb, number);
@@ -171,6 +178,9 @@ public class FromJsclSimplifyTextProcessor implements TextProcessor<String> {
 				sb.delete(sb.length() - number.length(), sb.length());
 				sb.append(var.getName());
 				result = MathType.constant;
+			} else {
+				sb.delete(sb.length() - number.length(), sb.length());
+				sb.append(CalculatorEngine.instance.format(Double.valueOf(number)));
 			}
 		}
 
diff --git a/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java b/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
index 7215bc30..a71dcd6b 100644
--- a/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
+++ b/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
@@ -33,6 +33,10 @@ class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
 			char ch = s.charAt(i);
 			startsWithFinder.setI(i);
 
+			if ( Character.isWhitespace(ch)) {
+				continue;
+			}
+
 			mathTypeResult = checkMultiplicationSignBeforeFunction(sb, s, i, mathTypeResult);
 
 			final MathType mathType = mathTypeResult.getMathType();
diff --git a/src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java b/src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java
index de5c8e82..8d6b7e50 100644
--- a/src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java
+++ b/src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java
@@ -11,6 +11,9 @@ import org.junit.BeforeClass;
 import org.junit.Test;
 import org.solovyev.android.calculator.jscl.JsclOperation;
 
+import java.text.DecimalFormatSymbols;
+import java.util.Locale;
+
 /**
  * User: serso
  * Date: 9/17/11
@@ -99,9 +102,9 @@ public class CalculatorEngineTest {
 		Assert.assertEquals("4", cm.evaluate(JsclOperation.numeric, "k11"));
 
 		CalculatorEngine.instance.getVarsRegister().addVar(null, new Var.Builder("t", (String)null));
-		Assert.assertEquals("11×t", cm.evaluate(JsclOperation.numeric, "t11"));
-		Assert.assertEquals("11×e×t", cm.evaluate(JsclOperation.numeric, "t11e"));
-		Assert.assertEquals("11×Infinity×t", cm.evaluate(JsclOperation.numeric, "t11∞"));
+		Assert.assertEquals("11t", cm.evaluate(JsclOperation.numeric, "t11"));
+		Assert.assertEquals("11et", cm.evaluate(JsclOperation.numeric, "t11e"));
+		Assert.assertEquals("11×Infinityt", cm.evaluate(JsclOperation.numeric, "t11∞"));
 		Assert.assertEquals("-t+t^3", cm.evaluate(JsclOperation.numeric, "t(t-1)(t+1)"));
 	}
 
@@ -134,12 +137,16 @@ public class CalculatorEngineTest {
 	public void testRounding() throws Exception {
 		final CalculatorEngine cm = CalculatorEngine.instance;
 
+		DecimalFormatSymbols decimalGroupSymbols = new DecimalFormatSymbols(Locale.getDefault());
+		decimalGroupSymbols.setDecimalSeparator('.');
+		decimalGroupSymbols.setGroupingSeparator('\'');
+		cm.setDecimalGroupSymbols(decimalGroupSymbols);
 		cm.setPrecision(2);
-		Assert.assertEquals("12345678.9", cm.evaluate(JsclOperation.numeric, "1.23456789E7"));
+		Assert.assertEquals("12'345'678.9", cm.evaluate(JsclOperation.numeric, "1.23456789E7"));
 		cm.setPrecision(10);
-		Assert.assertEquals("12345678.899999999", cm.evaluate(JsclOperation.numeric, "1.23456789E7"));
-		Assert.assertEquals("123456788.99999999", cm.evaluate(JsclOperation.numeric, "1.234567890E8"));
-		Assert.assertEquals("1234567890.1", cm.evaluate(JsclOperation.numeric, "1.2345678901E9"));
+		Assert.assertEquals("12'345'678.899999999", cm.evaluate(JsclOperation.numeric, "1.23456789E7"));
+		Assert.assertEquals("123'456'788.99999999", cm.evaluate(JsclOperation.numeric, "1.234567890E8"));
+		Assert.assertEquals("1'234'567'890.1", cm.evaluate(JsclOperation.numeric, "1.2345678901E9"));
 
 
 	}
diff --git a/src/test/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessorTest.java b/src/test/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessorTest.java
index bd9fc8c4..bab1b6c7 100644
--- a/src/test/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessorTest.java
+++ b/src/test/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessorTest.java
@@ -19,6 +19,9 @@ public class FromJsclSimplifyTextProcessorTest {
 	@Test
 	public void testProcess() throws Exception {
 		FromJsclSimplifyTextProcessor tp = new FromJsclSimplifyTextProcessor();
+		Assert.assertEquals("(e)", tp.process("(2.718281828459045)"));
+		Assert.assertEquals("123 456 789e", tp.process("123456789*2.718281828459045"));
+		Assert.assertEquals("123 456 789e", tp.process("123 456 789 * 2.718281828459045"));
 		Assert.assertEquals("t11e", tp.process("t11*2.718281828459045"));
 		Assert.assertEquals("e", tp.process("2.718281828459045"));
 		Assert.assertEquals("tee", tp.process("t2.718281828459045*2.718281828459045"));