diff --git a/src/hack/math/math.hpp b/src/hack/math/math.hpp
index 93e3ba3..d1f00dd 100755
--- a/src/hack/math/math.hpp
+++ b/src/hack/math/math.hpp
@@ -41,4 +41,10 @@ namespace hack::math
     // см. wiki/math
     return n * (2 * a1 + (n - 1) * d) / 2;
   }
+
+  template<typename T>
+  constexpr T square(T x) { return x * x; }
+
+  template<typename T>
+  constexpr T cube(T x) { return x * x * x; }
 }