Question

I want to have a code that can pick whichever two planets in the solar system and find the distance of them no matter where in their orbit they are, but I keep getting errors. Can someone please help me fix it?

f rom scipy import exp, pi, absolute, linspace import matplotlib. Ryplot as plt planet-I input ('Which planet do you want to pick for planet 1?") planet_2 input ('which planet do you want to pick for planet 27') distance - input ('are you sure you want to find the distance of these two planets?') def mercury(t): r-0.3871 #semi-major axis of Mercury orbit in AU return r*exp.(2*pi+1j*(r**-0.4*t)) def venus(t): r = 0.7233 # semi-major axis of Venus orbit in AU return rxexp (2*pi*lj*(r*-0.7*t)) return exp(2xpi*1jxt) r:1.524 # semi-major axis of Mars orbit inAu def earth(t): def mars(t): return rxexp(2xpi*1j(r**-1.5*t)) def jupiter(t): r-5.203,# sem i-major of.Jupiter orbit axis in-AU return r*exp(2*pi*1j*(r**-5.2*t)) def saturn(t): 9.539 # semi-major axis of Saturn orbit in AU r return rxexp(2xpi*1j*(r*x-9.5xt)) def uranus(t): r = 19.1914 # semi-major axis-of. Uranus orbit in AU return rexp(2xpi*1j*(r**-19.2*t)) def neptune(t): 30.0611 #semi-major axis of Neptune orbit in AU r return r*exp(2*pix1j*(rx-30.1*t)) def distance(t): def yes(t): def no(t): return absolute(str(planet_ 1) str(planet_2)) return distance return planet 1 x linspace(e, 20, 1000) pit:plot.(x, distance(x)) plt xlabel("Time in years") plt-ylabel("Distance in AU") pit.ylim(, 3) pit show) planet-1 = input ("which planet do you want to pick for planet 1?i) if planet l str('earth): return planet 1 x linspace(0, 20, 1000) plt plotx, distance(x)) plt.xlabel("Time in years) plt.vlabel("Distance in AU") planet 1- input('which planet do you want to pick for planet 1?) if planet 1str('earth'): print(str(earth)) elif planet 1mercury: print(mercury) elif planet 1venus: print(venus) elif planet-1 =- 'mars': elif planet 1jupiter': elif planet-1 'saturn'; elif planet 1 uranus' elif planet-1-= 'neptune": print(mars) print(jupiter) print(saturn) print(uranus) print (neptune) planet-2 = input ('which planet do you want to pick for planet 2? if planet 2earth': elif planet 2 str( 'mercury'): elif planet 2'venus': elif planet 2mars': elif planet,2 #- 'Jupiter'; print(earth) print(str(mercury)) print(venus) print(mars) print (jupiter) elif planet 2'saturn': if planet 1str ('earth): print(str(earth)) elif planet-1 # 'Mercury print(mercury) venus ': elif planet 1 print(venus) print (mars) elif planet 1jupiter: print (jupiter) elif planet 1'saturn print(saturn) elif planet 1uranus': print(uranus) elif planet 1 neptune: print (neptune) input ('which planet do you want to pick for planet 27) planet 2 if planet 2earth print (earth) elif planet2str('mercury): elif planet-2 ## "venus": elif planet-2 'mars': etif planet 2 jupiter': elif planet 2saturn' elif planet-2-# 'uranus'; elif planet 2'neptune' print(str(mercury)) print(venus) print(mars) print(jupiter) print(saturn) print(uranus) print(neptune) distance- input ('are you sure you want to find the distance of these two planets?') if yes print(str(distance)) if no: printiplanet 1)

Answer 1

You need to import the correct packages first.

import matplotlib.pyplot as plt

import math

include these 2 lines at beginning of code and it will work fine.

If it still does not work, try installing the packages first since they might be missing from your system.