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我試圖在python中生成一個圖來確定行星的速度,V = sqrt(GM/r)。我的做法是這樣的:用「R」的最大和最小的值已經被賦予TypeError:不支持的操作數類型爲/:'float'和'list',無法解析
r = range (57909227, 5906440628, 10000000)
:
我可以「R」產生幾百點。 G和M的值也被給出。我的代碼看起來是這樣的:
import sys
import os
import numpy
import matplotlib.pyplot as plt
from pylab import *
G=6.67*10**(-11)
M=2.0*10**30
radial_distance = range (57909227, 5906440629, 10000000)
for distance in radial_distance:
plt.plot(radial_distance, ((G*M)/distance)**0.5, '*')
plt.show()
返回我下面的錯誤:
File "generate_list.py", line 20, in <module>
plt.plot(radial_distance, ((G*M)/distance)**0.5, '*')
File "/home/trina/anaconda2/lib/python2.7/site-packages/matplotlib/pyplot.py", line 3154, in plot
ret = ax.plot(*args, **kwargs)
File "/home/trina/anaconda2/lib/python2.7/site-packages/matplotlib/__init__.py", line 1812, in inner
return func(ax, *args, **kwargs)
File "/home/trina/anaconda2/lib/python2.7/site-packages/matplotlib/axes/_axes.py", line 1424, in plot
for line in self._get_lines(*args, **kwargs):
File "/home/trina/anaconda2/lib/python2.7/site-packages/matplotlib/axes/_base.py", line 386, in _grab_next_args
for seg in self._plot_args(remaining, kwargs):
File "/home/trina/anaconda2/lib/python2.7/site-packages/matplotlib/axes/_base.py", line 364, in _plot_args
x, y = self._xy_from_xy(x, y)
File "/home/trina/anaconda2/lib/python2.7/site-packages/matplotlib/axes/_base.py", line 223, in _xy_from_xy
raise ValueError("x and y must have same first dimension")
ValueError: x and y must have same first dimension
請幫我修正這個錯誤。
'range'返回一個值列表。您不能通過列表 – Li357
將範圍(1,100,10)劃分爲列表[1,11,21,31,41,51,61,71,81,91]。你不能劃分一個浮點數和一個列表。你究竟在做什麼? –
我必須生成幾百個距離值,然後使用這些值來繪製V的函數,那麼生成r值然後在函數中使用的最有效方法是什麼? – bhjghjh