diff --git a/src/main/java/lesson5/homework/Main.java b/src/main/java/lesson5/homework/Main.java
new file mode 100644
index 0000000..2949bd9
--- /dev/null
+++ b/src/main/java/lesson5/homework/Main.java
@@ -0,0 +1,59 @@
+package lesson5.homework;
+
+import java.util.Random;
+
+public class Main {
+    public static void calc1(){
+        int size = 10000000;
+        int h = size / 2;
+        float[] arr = new float[size];
+        for (int i = 0; i < size; i++) {
+            arr[i] = 1f;
+        }
+        long a = System.currentTimeMillis();
+        for (int i = 0; i < size; i++) {
+            arr[i] = (float)(arr[i] * Math.sin(0.2f + i / 5) * Math.cos(0.2f + i / 5) * Math.cos(0.4f + i / 2));
+        }
+
+        System.out.println("Первый метод="+(System.currentTimeMillis()-a));
+    }
+    static void calc2(){
+        int size = 10000000;
+        int h = size / 2;
+        float[] arr = new float[size];
+        for (int i = 0; i < 100000; i++) {
+            arr[i] = 1f;
+        }
+        new Thread(() -> {
+
+            for (int i = 0; i < h; i++) {
+                arr[i] = 1f;
+            }
+            long a = System.currentTimeMillis();
+            for (int i = 0; i < h; i++) {
+                arr[i] = (float)(arr[i] * Math.sin(0.2f + i / 5) * Math.cos(0.2f + i / 5) * Math.cos(0.4f + i / 2));
+            }
+
+            System.out.println("Первый поток="+(System.currentTimeMillis()-a));
+
+        }).start();
+        new Thread(() -> {
+
+            for (int i = h; i < size; i++) {
+                arr[i] = 1f;
+            }
+            long a = System.currentTimeMillis();
+            for (int i = 0; i < size; i++) {
+                arr[i] = (float)(arr[i] * Math.sin(0.2f + i / 5) * Math.cos(0.2f + i / 5) * Math.cos(0.4f + i / 2));
+            }
+
+            System.out.println("Второой поток="+(System.currentTimeMillis()-a));
+        }).start();
+
+    }
+    public static void main(String[] args) {
+    calc1();
+    calc2();
+    }
+
+}