Rosenbrock Valley Wireframe

import matplotlib.pyplot as plt
import numpy as np

# Rosenbrock function
x = np.linspace(-2, 2, 60)
y = np.linspace(-1, 3, 60)
X, Y = np.meshgrid(x, y)

a, b = 1, 100
Z = (a - X)**2 + b * (Y - X**2)**2
Z = np.log1p(Z)  # Log scale for better visualization

fig = plt.figure(figsize=(10, 8), facecolor='#ffffff')
ax = fig.add_subplot(111, projection='3d', facecolor='#ffffff')

ax.plot_wireframe(X, Y, Z, rstride=2, cstride=2, color='#276CF5', linewidth=0.5, alpha=0.9)

ax.set_xlabel('X', fontsize=11, color='#374151', labelpad=10)
ax.set_ylabel('Y', fontsize=11, color='#374151', labelpad=10)
ax.set_zlabel('log(Z)', fontsize=11, color='#374151', labelpad=10)
ax.set_title('Rosenbrock Valley Wireframe', fontsize=14, color='#1f2937', fontweight='bold', pad=20)

ax.tick_params(colors='#6b7280', labelsize=8)
ax.xaxis.pane.fill = False
ax.yaxis.pane.fill = False
ax.zaxis.pane.fill = False
ax.xaxis.pane.set_edgecolor('#e5e7eb')
ax.yaxis.pane.set_edgecolor('#e5e7eb')
ax.zaxis.pane.set_edgecolor('#e5e7eb')
ax.grid(True, alpha=0.3, color='#9ca3af')

plt.tight_layout()
plt.show()