BUG: Fix minor type hinting problems

CHANGELOG.md

@@ -52,6 +52,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+- BUG: Fix minor type hinting problems [#598](https://github.com/RocketPy-Team/RocketPy/pull/598)
 - BUG: Optional Dependencies Naming in pyproject.toml. [#592](https://github.com/RocketPy-Team/RocketPy/pull/592)
 - BUG: Swap rocket.total_mass.differentiate for motor.total_mass_flow rate [#585](https://github.com/RocketPy-Team/RocketPy/pull/585)
 - BUG: export_eng 'Motor' method would not work for liquid motors. [#559](https://github.com/RocketPy-Team/RocketPy/pull/559) 

rocketpy/environment/environment.py

@@ -269,9 +269,9 @@ def __init__(
         self,
         gravity=None,
         date=None,
-        latitude=0,
-        longitude=0,
-        elevation=0,
+        latitude=0.0,
+        longitude=0.0,
+        elevation=0.0,
         datum="SIRGAS2000",
         timezone="UTC",
         max_expected_height=80000.0,

rocketpy/motors/solid_motor.py

@@ -195,7 +195,7 @@ def __init__(
         grain_separation,
         grains_center_of_mass_position,
         center_of_dry_mass_position,
-        nozzle_position=0,
+        nozzle_position=0.0,
         burn_time=None,
         throat_radius=0.01,
         reshape_thrust_curve=False,

rocketpy/rocket/rocket.py

@@ -954,7 +954,7 @@ def add_trapezoidal_fins(
         tip_chord,
         span,
         position,
-        cant_angle=0,
+        cant_angle=0.0,
         sweep_length=None,
         sweep_angle=None,
         radius=None,

rocketpy/simulation/flight.py

@@ -490,8 +490,8 @@ def __init__(
         rocket,
         environment,
         rail_length,
-        inclination=80,
-        heading=90,
+        inclination=80.0,
+        heading=90.0,
         initial_solution=None,
         terminate_on_apogee=False,
         max_time=600,