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yolov5环境配置
更新显卡驱动参考:目标检测–手把手教你搭建自己的YOLOv5目标检测平台原创 2021-10-24 20:03:58 · 1445 阅读 · 0 评论 -
SKA暑期学校
fundamentals_of_interferometry_chinese原创 2021-08-09 21:06:30 · 251 阅读 · 0 评论 -
坐标J2000与J2000d的相互转换
#http://simbad.u-strasbg.fr/simbad/sim-id?Ident=MAXI+J1820%2B070+&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id#赤经hour = 18minutes = 20seconds = 21.9424256519#赤纬degree = 7arcminute = 11arcsecond = 7.278818899print('RA {0原创 2021-07-23 12:54:04 · 746 阅读 · 0 评论 -
读取dat文件
def read_dat(filename): import numpy as np ''' 读dat文件, 返回np.array(x),np.array(xerr),np.array(y),np.array(yerr) ''' with open(filename) as f: data = f.readlines() x = [] y = [] xerr = [] yerr = [] for原创 2021-07-21 21:10:20 · 2117 阅读 · 0 评论 -
给定函数形式进行拟合,得出参数取值95%的置信区间
import numpy as npfrom scipy.optimize import curve_fitfrom scipy.stats.distributions import t as t_distributiondef fun(x,A,b): return A*x+bx = [1 ,2, 3 ]y = [2 ,4, 6 ]def fun_fit(fun, xdata, ydata): ''' import numpy as np from scip原创 2021-06-01 21:47:22 · 1912 阅读 · 0 评论 -
不同插值对比
数据Tb(v)Tb,v,-319.8,-318.5,-317.2,-315.90000000000003,-314.6,-313.3,-312.0,-310.7,-309.40000000000003,-308.1,-306.8,-305.5,-304.2,-302.90000000000003,-301.6,-300.3,-299.0,-297.7,-296.40000000000003,-295.1,-293.8,-292.5,-291.2,-289.9原创 2021-05-11 22:30:07 · 679 阅读 · 0 评论 -
高斯-勒让德积分(Gauss-Legendre integral)的原理及Python实现
Gauss-Legendre integraldef f(x): return x**4-2*x+1N = 3 #取3个样本点a,b = 0,2 #积分上下限x,w = roots_legendre(N)xp = x*(b-a)/2+(b+a)/2wp = w*(b-a)/2s = 0for i in range(N): s+=wp[i]*f(xp[i])print(s)原创 2021-04-26 22:52:11 · 5648 阅读 · 0 评论 -
量子力学教程 2.4题
import numpy as npimport matplotlib.pyplot as pltplt.rcParams['text.usetex'] = Trueplt.rcParams['xtick.direction'] = 'in'plt.rcParams['ytick.direction'] = 'in'plt.rcParams['grid.linestyle'] = '--'plt.rcParams['font.size'] = 18plt.rcParams['lines.lin原创 2021-04-20 18:04:51 · 249 阅读 · 0 评论 -
利用Python进行图片验证码识别
# -*- coding: utf8 -*-from re import findallimport osimport requestsimport tesserocrfrom PIL import Imageimport numpy as npimport matplotlib.pyplot as pltsession = requests.session()Headers = { 'User-Agent' : 'Mozilla/5.0 (Windows NT 10.0; Wi原创 2021-01-19 18:51:08 · 1142 阅读 · 0 评论 -
利用python将多张图片转为gif
1.安装依赖包pip install imageio2.代码import imageiodef create_gif(image_list, gif_name): frames = [] for image_name in image_list: frames.append(imageio.imread(image_name)) imageio.mimsave(gif_name, frames, 'GIF', duration=0.7)#duration间隔原创 2020-12-23 21:24:54 · 1396 阅读 · 0 评论 -
Matplotlib备忘单
CheatsheetsHandouts原创 2020-12-23 18:38:33 · 115 阅读 · 0 评论 -
关于python -m http.server的使用说明
python -m http.server --help usage: server.py [-h] [--cgi] [--bind ADDRESS] [--directory DIRECTORY] [port]positional arguments: port Specify alternate port [default: 8000]optional arguments原创 2020-12-21 16:39:19 · 4900 阅读 · 0 评论