import math, time, sys, re import numpy as np import pandas as pd import matplotlib.pyplot as plt radii = [4.1e8, 6.62e8, 1.07e9, 1.89e9] radii = np.array([R*R*R for R in radii]) times = [146880, 302400, 613440, 1442880] times = np.array([T*T for T in times]) m, b = np.polyfit(radii, times, 1) plt.figure() plt.scatter(radii, times) plt.plot(radii, m*radii + b) plt.ylabel("T^2 (s^2)") plt.xlabel("R^3 (m^3)") print("Slope of line: " + str(m))