So I have this equation:
x^2 + 4*(z+10)^2 = e^(-0.05*z)
How cant I plot it using, for example, Matplotlib.pyplot and Numpy packages?
解決方案
My solution is: Calculate each side of equation for a given x and z gridded. Then I contour points that satisfy the equation. One side minus other equals to zero.
import numpy as np
import matplotlib.pyplot as plt
z = -np.linspace(9,15,100)
x = np.linspace(-26,26,1000)
x,z = np.meshgrid(x,z)
Z = -np.exp(-0.05*z) +4*(z+10)**2
X = x**2
plt.contour(x,z,(X+Z),[0])
plt.xlim([-1.5,1.5])
plt.ylim([-11.5,-8.5])
