Difficulty in Plotting circles in Python using Mathplotlib and NumPy.

Question

I have tried plotting a circle in Python but get a distorted curve where there is a circle in the 1st and 4th quadrants but a straight line joining the highest point on the 1st quadrant to the lowest point in the 4th quadrant and I'm unable to get a proper circle.
The code is given as:
center_1_x = -2
radius_1 = 6
x_values = np.linspace(center_1_x - radius_1, center_1_x + radius_1, 100, endpoint=True)
y_values = np.sqrt(abs((radius_1 ** 2) - (x_values - center_1_x) ** 2)) * np.sign(x_values - center_1_x)
plt.plot(x_values, y_values, color='blue')

Answer 1

Maybe this way will help you:

https://code.sololearn.com/cNzbb27XUyes/?ref=app

Answer 2

Well by making two values of y_values like y_values_p and y_values_n, I have been able to solve the problem by not considering np.sign statement

Answer 3

or you can force a square shaped plot
plt.gca().set_aspect('equal')

https://code.sololearn.com/cbCT6dsuXY56/?ref=app