diff --git a/Lab11.iml b/Lab11.iml
new file mode 100644
index 0000000..4de040d
--- /dev/null
+++ b/Lab11.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="scala-sdk-2.13.12" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/src/TestArray.scala b/src/TestArray.scala
new file mode 100644
index 0000000..64acc84
--- /dev/null
+++ b/src/TestArray.scala
@@ -0,0 +1,9 @@
+object TestArray extends App {
+  def arrayAvg(arr: Array[Double]): Double = {
+    if (arr.isEmpty) return 0
+    return arr.sum / arr.length
+  }
+
+  val arr: Array[Double] = Array.range(1, 1001).map(i => i.toDouble)
+  println(arrayAvg(arr))
+}