diff --git a/.gitignore b/.gitignore
index 36b13f1..2e2f2e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,7 +15,6 @@ dist/
 downloads/
 eggs/
 .eggs/
-lib/
 lib64/
 parts/
 sdist/
diff --git a/lib/math.pla b/lib/math.pla
new file mode 100644
index 0000000..22d5e3e
--- /dev/null
+++ b/lib/math.pla
@@ -0,0 +1,19 @@
+pi = Func(): Float {
+	return 3.141592653589793;
+}
+
+e = Func(): Float {
+  return 2.718281828459045;
+}
+
+rad = Func(degrees: Float): Float {
+	return degrees * $pi() / 180;
+}
+
+deg = Func(radians: Float): Float {
+	return 180 * radians / $pi();
+}
+
+sqrt = Func(n: Float): Float {
+	return $pow(n, 0.5);
+}
\ No newline at end of file