Initial data commit

Task/Euler-method/Ada/euler-method-3.ada

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+with Ada.Text_IO;  use Ada.Text_IO;
+with Euler;
+
+procedure Test_Euler_Method is
+   package Float_Euler is new Euler (Float);
+   use Float_Euler;
+
+   function Newton_Cooling_Law (T, Y : Float) return Float is
+   begin
+      return -0.07 * (Y - 20.0);
+   end Newton_Cooling_Law;
+
+   Y : Waveform := Solve (Newton_Cooling_Law'Access, 100.0, 0.0, 100.0, 10);
+begin
+   for I in Y'Range loop
+      Put_Line (Integer'Image (10 * I) & ":" & Float'Image (Y (I)));
+   end loop;
+end Test_Euler_Method;