[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

maths/numerical_analysis/ordinary_differential_equations.py

@@ -73,9 +73,6 @@ def heuns_method(
     return x, y
 
 
-
-
-
 if __name__ == "__main__":
     import doctest
 
@@ -86,4 +83,4 @@ def example_ode(x: float, y: float) -> float:
         return y - x**2 + 1
 
     x_res, y_res = heuns_method(example_ode, 0.0, 0.5, 0.25, 4)
-    print(f"Final heuns methot y value at x={x_res[-1]}: {round(y_res[-1], 4)}")
+    print(f"Final heuns methot y value at x={x_res[-1]}: {round(y_res[-1], 4)}")