diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Java-Assignment-004.iml b/Java-Assignment-004.iml
index b46c0dd..8ad7c06 100644
--- a/Java-Assignment-004.iml
+++ b/Java-Assignment-004.iml
@@ -5,6 +5,7 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
     </content>
+    <orderEntry type="jdk" jdkName="openjdk-20" jdkType="JavaSDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>
\ No newline at end of file
diff --git a/src/Multadd.java b/src/Multadd.java
new file mode 100644
index 0000000..6fdf51c
--- /dev/null
+++ b/src/Multadd.java
@@ -0,0 +1,31 @@
+// import java.util.Scanner;
+import java.lang.Math;
+
+public class Multadd {
+    public static double multadd(double a, double b, double c) {
+        double result = a * b + c;
+        return result;
+    }
+    public static double expSum(double x) {
+        //$$xe^{-x} + \sqrt{1 - e^{-x}}$$
+        double term1 = multadd(x, Math.exp(-x), 0);
+        double term2 = Math.sqrt(1 - Math.exp(-x));
+        double result4 = term1 + term2;
+        return result4;
+    }
+    public static void main(String[] args) {
+        double result1 = multadd(5.0, 2.0, 7.0);
+        //$$\sin\left(\frac{\pi}{4}\right) + \frac{\cos\left(\frac{\pi}{4}\right)}{2}$$
+        //$$\log_{10}(10) + \log_{10}(20)$$
+        //Math.sin(Math.PI / {4}) + {Math.cos(Math.PI}{4})}{2}
+        //Math.log {10}(10) + Math.log {10}(20)
+        double result2 = Math.sin(Math.PI / 4.0) + Math.cos(Math.PI / 4.0) / 2.0;
+        double result3 = Math.log10(10) + Math.log10(20);
+        double result4 = expSum(2.0);
+        System.out.println("Answer for result1 is " + result1);
+        System.out.println("Answer for result2 is " + result2);
+        System.out.println("Answer for result3 is " + result3);
+        System.out.println("Answer for result4 is " + result4);
+    }
+
+}