diff --git a/src/main/java/org/solovyev/android/calculator/CalculatorEditor.java b/src/main/java/org/solovyev/android/calculator/CalculatorEditor.java
index bfe91912..4f0194bf 100644
--- a/src/main/java/org/solovyev/android/calculator/CalculatorEditor.java
+++ b/src/main/java/org/solovyev/android/calculator/CalculatorEditor.java
@@ -84,7 +84,9 @@ public class CalculatorEditor extends EditText {
 		}
 
 		Log.d(this.getClass().getName(), getText().toString());
-		setSelection(selectionStart, selectionEnd);
+
+		int length = getText().length();
+		setSelection(Math.max(Math.min(length - 1, selectionStart), 0), Math.max(Math.min(length - 1, selectionEnd), 0));
 	}
 
 	public boolean isHighlightText() {
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 af535519..6791c092 100644
--- a/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
+++ b/src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
@@ -45,10 +45,6 @@ class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
 
 			if (mathTypeBefore == MathType.function && CollectionsUtils.find(MathType.openGroupSymbols, startsWithFinder) != null) {
 				throw new ParseException("Empty function: " + mathTypeResult.getMatch());
-			} else if (mathTypeBefore == MathType.postfix_function && mathTypeResult.getMathType() == MathType.binary_operation) {
-				if ( mathTypeResult.getMatch().equals("^") ) {
-					throw new ParseException("Power operation after postfix function is currently unsupported!");
-				}
 			}
 
 			i = mathTypeResult.processToJscl(result, i);
diff --git a/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java b/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java
index 17872ffd..19cd40d0 100644
--- a/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java
+++ b/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java
@@ -42,5 +42,16 @@ public class TextHighlighterTest {
 		Assert.assertEquals(")", textHighlighter.process(")").toString());
 		Assert.assertEquals(")()(", textHighlighter.process(")()(").toString());
 		Assert.assertEquals("1 000 000", textHighlighter.process("1000000").toString());
+
+		textHighlighter.process("cannot calculate 3^10^10 !!!\n" +
+				"        unable to enter 0. FIXED\n" +
+				"        empty display in Xperia Rayo\n" +
+				"        check привиденная FIXED\n" +
+				"        set display result only if text in editor was not changed FIXED\n" +
+				"        shift M text to the left\n" +
+				"        do not show SYNTAX ERROR always (may be show send clock?q) FIXED\n" +
+				"        ln(8)*log(8) =>  ln(8)*og(8) FIXED\n" +
+				"        copy/paste ln(8)*log(8)\n" +
+				"        6!^2 ERROR");
 	}
 }
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 c3474bb9..c623c4da 100644
--- a/src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java
+++ b/src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java
@@ -5,6 +5,7 @@
 
 package org.solovyev.android.calculator.model;
 
+import jscl.math.Expression;
 import org.junit.Assert;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -108,6 +109,7 @@ public class CalculatorEngineTest {
 		junit.framework.Assert.assertEquals("120", cm.evaluate(JsclOperation.numeric, "(2+2+1)!").getResult());
 		junit.framework.Assert.assertEquals("24", cm.evaluate(JsclOperation.numeric, "(2.0+2.0)!").getResult());
 		junit.framework.Assert.assertEquals("24", cm.evaluate(JsclOperation.numeric, "4.0!").getResult());
+		junit.framework.Assert.assertEquals("36.0", Expression.valueOf("3!^2").numeric().toString());
 		try {
 			junit.framework.Assert.assertEquals("i", cm.evaluate(JsclOperation.numeric, "i!").getResult());
 			fail();