Plotting a polynomial in Python
curve, matplotlib, numpy, python
Solution
I'm not sure I fully understood your question, but I think you want a surface plot
import numpy as np
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import Axes3D
x = np.arange(-5, 5, 0.25)
y = np.arange(-5, 5, 0.25)
X, Y = np.meshgrid(x, y)
F = 3 + 2*X + 4*X*Y + 5*X*X
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
ax.plot_surface(X, Y, F)
plt.show()
And for the resources: official documentation and pyvideos
Problem
I am new to Python plotting apart from some basic knowledge of `matplotlib.pyplot`. My question is how to plot some higher degree polynomials? One method I saw was expressing y in terms of x and then plotting the values. But I have 2 difficulties: - y and x cannot be separated. - I am expecting a closed curve(actually a complicated curve) The polynomial I am trying to plot is: ``` c0 + c1*x + c2*y +c3*x*x + c4*x*y + c5*y*y + c6*x**3 + c7*x**2*y + ..... c26*x*y**5 + c27*y**6 ``` All coefficients `c0` to `c27` are known. How do I plot this curve? Also could you please suggest me resources from where I can learn plotting and visualization in Python? Clarification: Sorry everyone for not making it clear enough. It is not an equation of a surface (which involves 3 variables: x, y and z). I should have put a zero at the end: c0 + c1*x + c2*y +c3*x*x + c4*x*y + c5*y*y + c6*x**3 + c7*x**2*y + ..... c26*x*y**5 + c27*y**6 =0