diff --git a/pom.xml b/pom.xml
index 91bc6806c6e313d325f45e05c5af6e42cb2c698e..bd3ed0d32d377ee7247140b6651b84f6d04e6c87 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 
   <groupId>de.monticore.lang.monticar</groupId>
   <artifactId>embedded-montiarc-math-generator</artifactId>
-  <version>0.0.16-SNAPSHOT</version>
+  <version>0.0.17-SNAPSHOT</version>
 
   <!-- == PROJECT DEPENDENCIES ============================================= -->
 
diff --git a/src/main/java/de/monticore/lang/monticar/generator/cpp/converter/StringIndexHelper.java b/src/main/java/de/monticore/lang/monticar/generator/cpp/converter/StringIndexHelper.java
index 677638b85f56a9e9f458f80ecf71b7b2bb363f44..0f96d07afe5450859ad591d36e62b76823729769 100644
--- a/src/main/java/de/monticore/lang/monticar/generator/cpp/converter/StringIndexHelper.java
+++ b/src/main/java/de/monticore/lang/monticar/generator/cpp/converter/StringIndexHelper.java
@@ -2,28 +2,36 @@ package de.monticore.lang.monticar.generator.cpp.converter;
 
 /**
  * @author Sascha Schneiders
+ * @author Christoph Richter
  */
 public class StringIndexHelper {
 
     public static String modifyContentBetweenBracketsByAdding(String input, String modifier) {
+        return modifyContentBetweenBracketsByAdding(input, modifier, "(", ",", ")");
+    }
+
+    /**
+     * Only adds modifier in the first occurring bracket
+     */
+    public static String modifyContentBetweenBracketsByAdding(String input, String modifier, String bracketStart, String bracketSep, String bracketEnd) {
         String result = "";
         boolean done = false;
-        int indexFirst = input.indexOf("(", 0);
+        int indexFirst = input.indexOf(bracketStart, 0);
         if (indexFirst == -1)
             return input;
         result += input.substring(0, indexFirst);
-        int indexSecond = input.indexOf(",", indexFirst + 1);
+        int indexSecond = input.indexOf(bracketSep, indexFirst + bracketSep.length());
         if (indexSecond == -1) {
-            indexSecond = input.indexOf(")", indexFirst + 1);
+            indexSecond = input.indexOf(bracketEnd, indexFirst + bracketEnd.length());
             done = true;
         }
         while (!done) {
             result += input.substring(indexFirst, indexSecond) + modifier;
             indexFirst = indexSecond;
-            indexSecond = input.indexOf(",", indexSecond + 1);
+            indexSecond = input.indexOf(bracketSep, indexSecond + bracketSep.length());
 
             if (indexSecond == -1) {
-                indexSecond = input.indexOf(")", indexFirst + 1);
+                indexSecond = input.indexOf(bracketEnd, indexFirst + bracketEnd.length());
                 done = true;
             }
         }
@@ -37,9 +45,22 @@ public class StringIndexHelper {
         if (input.endsWith(endPart)) {
             int indexFirst = input.lastIndexOf(endPart);
             result = input.substring(0, indexFirst);
-            result+=newEndPart;
+            result += newEndPart;
         }
         return result;
     }
 
+    public static String modifyContentBetweenBracketsByAddingForAllBrackets(String input, String modifier, String bracketStart, String bracketSep, String bracketEnd) {
+        String[] parts = input.split("(?<=\\))");
+        StringBuilder sb = new StringBuilder();
+        for (String s : parts) {
+            sb.append(modifyContentBetweenBracketsByAdding(s, modifier, bracketStart, bracketSep, bracketEnd));
+        }
+        return sb.toString();
+    }
+
+    public static String modifyContentBetweenBracketsByAddingForAllBrackets(String input, String modifier) {
+        return modifyContentBetweenBracketsByAddingForAllBrackets(input, modifier, "(", ",", ")");
+    }
+
 }
diff --git a/src/main/java/de/monticore/lang/monticar/generator/optimization/MathInformationRegister.java b/src/main/java/de/monticore/lang/monticar/generator/optimization/MathInformationRegister.java
index c8693c0c1c87fda9b4d1d1872eafd694b803265c..e762f49f4fbf422e960a72645d4223964471889d 100644
--- a/src/main/java/de/monticore/lang/monticar/generator/optimization/MathInformationRegister.java
+++ b/src/main/java/de/monticore/lang/monticar/generator/optimization/MathInformationRegister.java
@@ -1,10 +1,8 @@
 package de.monticore.lang.monticar.generator.optimization;
 
-import de.monticore.lang.math._symboltable.expression.MathExpressionSymbol;
-import de.monticore.lang.math._symboltable.expression.MathNumberExpressionSymbol;
-import de.monticore.lang.math._symboltable.expression.MathValueExpressionSymbol;
-import de.monticore.lang.math._symboltable.expression.MathValueSymbol;
+import de.monticore.lang.math._symboltable.expression.*;
 import de.monticore.lang.math._symboltable.matrix.MathMatrixAccessOperatorSymbol;
+import de.monticore.lang.math._symboltable.matrix.MathMatrixNameExpressionSymbol;
 import de.monticore.lang.monticar.generator.BluePrint;
 import de.monticore.lang.monticar.generator.Variable;
 import de.monticore.lang.monticar.generator.cpp.BluePrintCPP;
@@ -19,6 +17,7 @@ import java.util.Optional;
  * This class stores information of already encountered math information
  *
  * @author Sascha Schneiders
+ * @author Christoph Richter
  */
 public class MathInformationRegister {
     protected List<Variable> variables = new ArrayList<>();//contains in implementation Math section declared Variables
@@ -164,6 +163,7 @@ public class MathInformationRegister {
             var.addDimensionalInformation(dimension.getTextualRepresentation());
         this.variables.add(var);
         var.addProperties(mathValueSymbol.getType().getProperties());
+        this.mathValueSymbols.add(mathValueSymbol);
     }
 
     public Variable getVariable(String name) {
@@ -200,4 +200,74 @@ public class MathInformationRegister {
         }
         return result;
     }
+
+    /**
+     * Searches MathValueSymbol in list and returns first matching symbol which contains the type declaration information
+     *
+     * @param symbol Symbol for which type information should be collected
+     * @return returns the first type declaration as symbol
+     */
+    public MathValueSymbol getFullTypeInformation(MathValueSymbol symbol) {
+        MathValueSymbol result = getMathValueSymbol(symbol.getName());
+        if (result == null)
+            result = symbol;
+        return result;
+    }
+
+    /**
+     * Variables are replaced by their definition.
+     *
+     * @param nonAtomarExpression Expression in which the variables will be substituted
+     * @param atomarValueName     Defines the name of the atomar variable after which no more substitution will be made
+     * @return MathExpressionSymbol containing the replaces variables
+     */
+    public MathExpressionSymbol resolveMathExpressionToAtomarExpression(MathExpressionSymbol nonAtomarExpression, String atomarValueName) {
+        MathExpressionSymbol result;
+        if (nonAtomarExpression.isArithmeticExpression()) {
+            // recursively substitute expressions
+            MathArithmeticExpressionSymbol arithmeticSubstituted = (MathArithmeticExpressionSymbol) nonAtomarExpression;
+            MathArithmeticExpressionSymbol arithmeticResult = new MathArithmeticExpressionSymbol();
+            arithmeticResult.setMathOperator(arithmeticSubstituted.getOperator());
+            arithmeticResult.setLeftExpression(resolveMathExpressionToAtomarExpression(arithmeticSubstituted.getLeftExpression(), atomarValueName));
+            arithmeticResult.setRightExpression(resolveMathExpressionToAtomarExpression(arithmeticSubstituted.getRightExpression(), atomarValueName));
+            result = arithmeticResult;
+        } else if (nonAtomarExpression instanceof MathValueSymbol) {
+            // substitute value expr by assigned expr
+            MathValueSymbol valueExpr = (MathValueSymbol) nonAtomarExpression;
+            result = getSubstituteByName(valueExpr.getName(), nonAtomarExpression, atomarValueName);
+        } else if (nonAtomarExpression instanceof MathMatrixNameExpressionSymbol) {
+            MathMatrixNameExpressionSymbol sourceExpr = (MathMatrixNameExpressionSymbol) nonAtomarExpression;
+            MathMatrixNameExpressionSymbol targetExpr;
+            // modifiy access name
+            String accessName = getSubstituteByName(sourceExpr.getNameToAccess(), nonAtomarExpression, atomarValueName).getTextualRepresentation();
+            if (sourceExpr.isMathMatrixAccessOperatorSymbolPresent() && !(accessName.contains("("))) {
+                targetExpr = new MathMatrixNameExpressionSymbol(String.format("(%s)", accessName));
+                // modify access operator
+                MathMatrixAccessOperatorSymbol sourceAccessOperator = sourceExpr.getMathMatrixAccessOperatorSymbol();
+                MathMatrixAccessOperatorSymbol targetAccessOperator = new MathMatrixAccessOperatorSymbol();
+                targetAccessOperator.setMathMatrixAccessSymbols(sourceAccessOperator.getMathMatrixAccessSymbols());
+                targetAccessOperator.setAccessStartSymbol(".at(");
+                targetExpr.setMathMatrixAccessOperatorSymbol(targetAccessOperator);
+                result = targetExpr;
+            } else {
+                result = nonAtomarExpression;
+            }
+        } else if (nonAtomarExpression instanceof IMathNamedExpression) {
+            // substitute value expr by assigned expr
+            result = getSubstituteByName(((IMathNamedExpression) nonAtomarExpression).getNameToAccess(), nonAtomarExpression, atomarValueName);
+        } else {
+            result = nonAtomarExpression;
+        }
+        return result;
+    }
+    
+    private MathExpressionSymbol getSubstituteByName(String name, MathExpressionSymbol expr, String atomarValueName) {
+        MathExpressionSymbol result;
+        MathValueSymbol declaration = getMathValueSymbol(name);
+        if ((declaration != null) && (declaration.getValue() != null) && (!name.contentEquals(atomarValueName)))
+            result = declaration.getValue();
+        else
+            result = expr;
+        return result;
+    }
 }