refactor: experimental_angle example refactored for V2

example/experimental_angle.cpp

@@ -0,0 +1,49 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2018 Mateusz Pusz
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include <units/isq_angle/isq_angle.h>
+#include <units/math.h>
+#include <units/quantity_io.h>
+#include <units/si/unit_symbols.h>
+#include <iostream>
+
+template<class T>
+  requires units::is_scalar<T>
+inline constexpr bool units::is_vector<T> = true;
+
+int main()
+{
+  using namespace units;
+  using namespace units::si::unit_symbols;
+  using namespace units::angular::unit_symbols;
+  using units::angular::unit_symbols::deg;
+  using units::angular::unit_symbols::rad;
+
+  const auto lever = isq_angle::position_vector[cm](20);
+  const auto force = isq_angle::force[N](500);
+  const auto angle = isq_angle::angular_measure[deg](90.);
+  const weak_quantity_of<isq_angle::torque> auto torque =
+    lever * force * angular::sin(angle) / isq_angle::cotes_angle[rad](1);
+
+  std::cout << "Applying a perpendicular force of " << force << " to a " << lever << " long lever results in "
+            << torque[N * m / rad] << " of torque.\n";
+}