added logic

Author: nofarblue

app/mathUtils.js

@@ -0,0 +1,13 @@
+export function square(x) {
+    return x * x;
+  }
+  
+  export function cube(x) {
+    return x * x * x;
+  }
+  
+  export function factorial(n) {
+    if (n === 0) return 1;
+    return n * factorial(n - 1);
+  }
+