diff --git a/src/main/java/com/zipcodewilmington/scientificcalculator/Calculator.java b/src/main/java/com/zipcodewilmington/scientificcalculator/Calculator.java
index 029472f..cafd740 100644
--- a/src/main/java/com/zipcodewilmington/scientificcalculator/Calculator.java
+++ b/src/main/java/com/zipcodewilmington/scientificcalculator/Calculator.java
@@ -12,4 +12,5 @@ public int subtract(int firstNum, int secondNum) {
         result = firstNum - secondNum;
         return result;
     }
+
 }
diff --git a/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorEngine.java b/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorEngine.java
index c5e12d2..d4be3b5 100644
--- a/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorEngine.java
+++ b/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorEngine.java
@@ -35,4 +35,6 @@ public static Integer getIntegerInput(String prompt) {
     public static Double getDoubleInput(String prompt) {
         return null;
     }
+
+
 }
diff --git a/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorInterface.java b/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorInterface.java
index 97db1c1..b6ea84b 100644
--- a/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorInterface.java
+++ b/src/main/java/com/zipcodewilmington/scientificcalculator/CalculatorInterface.java
@@ -50,6 +50,7 @@ public String menuOption1(String prompt) {
         int x = Calculator.sum(y, z);
         System.out.println(x);
 
+        String
 
         String s = CalculatorEngine.getStringInput("Enter a string");
 
diff --git a/src/main/java/com/zipcodewilmington/scientificcalculator/Scientific.java b/src/main/java/com/zipcodewilmington/scientificcalculator/Scientific.java
new file mode 100644
index 0000000..538cbe6
--- /dev/null
+++ b/src/main/java/com/zipcodewilmington/scientificcalculator/Scientific.java
@@ -0,0 +1,12 @@
+package com.zipcodewilmington.scientificcalculator;
+
+import com.sun.codemodel.internal.JSwitch;
+
+public class Scientific {
+
+    public static Double triganometry(firstNum, secondNum)
+
+        switch (operator)(
+                case "cos":
+            )
+}