public static RotationalStiffness PoundForceFeetPerRadian <T>(this T value) => RotationalStiffness.FromPoundForceFeetPerRadian(Convert.ToDecimal(value));
public void NumberToPoundForceFeetPerRadianTest() => Assert.Equal(RotationalStiffness.FromPoundForceFeetPerRadian(2), 2.PoundForceFeetPerRadian());