2.5

import numpy as np
import matplotlib.pyplot as plt

a = 2
b = np.sqrt(10)
c = np.sqrt(8)

phi = np.arange(0, 2*np.pi+0.1, 0.1)
theta = np.arange(-1, 1.1, 0.1)[:, np.newaxis]

x = a * np.cosh(theta) * np.cos(phi)
y = b * np.cosh(theta) * np.sin(phi)
z = c * np.sinh(theta)

fig = plt.figure()
ax = fig.add_subplot(projection='3d')
ax.plot_surface(x, y, z, cmap='viridis')
ax.set_xlabel('x')
ax.set_ylabel('y')
ax.set_zlabel('z')
ax.set_box_aspect([1, 1, 1])
ax.set_title('$\frac{x^{2}{4}+\frac{y}2}{10}-\frac{z^2}{8}=1$')
plt.show()

import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
x = np.linspace(-50, 50, 1000)
y = np.linspace(-50, 50, 1000)
X, Y = np.meshgrid(x, y)
Z = (X2)/4+(Y2)/6
ax.plot_surface(X, Y, Z, cmap='viridis')
ax.set_xlabel('X')
ax.set_ylabel('Y')
ax.set_zlabel('Z')
ax.set_title('$(\frac{x^{2}{4}+\frac{y}2}{6})=z$')
ax.set_zlim(0, 1000)
plt.show()