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

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

Author: pre-commit-ci[bot]

Diff for: src/dl_workshop/answers.py

@@ -81,7 +81,7 @@ def logistic_loss(params, model, x, y):
 
 
 def f(w):
-    return w ** 2 + 3 * w - 5
+    return w**2 + 3 * w - 5
 
 
 def df(w):

Diff for: src/dl_workshop/jax_idioms.py

@@ -93,7 +93,7 @@ def randomness_ex_3(key, num_realizations: int, grw_draw: Callable):
 
 def goldfield(x, y):
     """All credit to https://www.analyzemath.com/calculus/multivariable/maxima_minima.html for this function."""
-    return (2 * x ** 2) - (4 * x * y) + (y ** 4 + 2)
+    return (2 * x**2) - (4 * x * y) + (y**4 + 2)
 
 
 def grad_ex_1():