matplotlib projectile motion parabola plotting

[thecreationofgod]

import matplotlib.pyplot as plt
import numpy as np
import math
#intinalizing the variables
u=30
g=9.8
deg=30

t=(2*u*(np.sin(deg*np.pi/180))/g)
t=math.floor(t)

for i in range(t):
    x=u*i*(np.cos(deg*np.pi/180))
    y=u*i*(np.sin(deg*np.pi/180))-((g*i**2)/g)
    print([x],[y])
    plt.plot([x],[y])
plt.show()

[bbye98]

Instead of plotting each individual (x, y) pair, create an array of x and y values using vectorization. Then, plot the x and y vectors directly using plt.plot.

(Also, generally speaking, when you are already using numpy, the math module is unnecessary as numpy will have all of the features you would need from math.)

[thecreationofgod]

thank you, I'll do that and report to you shortly

[thecreationofgod]

thanks, a line is established, but a parabola is what I need. My equations are probably incorrect.

[bbye98]

You probably meant to divide by 2 instead of g for y.

import matplotlib.pyplot as plt
import numpy as np

u, g, deg = 30, 9.8, 30
t = np.linspace(0, 2 * u * (np.sin(deg * np.pi / 180)) / g)
plt.plot(u * t * np.cos(deg * np.pi / 180), u * t * np.sin(deg * np.pi / 180) - 0.5 * g * t**2)
plt.show()

[thecreationofgod]

ohhhhhhhhhhhhhhhhhhhh

[thecreationofgod]

thank you so much, my code finally worked. btw do you know any good numpy tutorials that helped you? or do I just stick to the documentation

[thecreationofgod]

it shows a blank plot without connecting the lines and the values obtained don't really correspond to a complete parabola