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1, Introduction Hello, I'm sailing. The content shared today is based on Python programming to realize the development of stock trading related functions. If readers do not know much about stock or financial derivative trading and are more interested, they can query relevant materials by themselves. Next, the author will introduce several com ...

Python note12 multilayer neural network Multilayer neural network In the previous, we learned about the two most common models in the field of machine learning, linear regression model and Logistic regression model. They deal with the two most common problems in machine learning - regression problem and classification problem respectively ...

brief introduction This article will explain the basic data types Series and DataFrame in Pandas, and explain in detail the creation, indexing and other basic behaviors of these two types. To use Pandas, you need to reference the following lib: In [1]: import numpy as np In [2]: import pandas as pd Series Series is a one-dimensional ...

[OpenCV complete routine] 86 Application of frequency domain filtering: fingerprint image processing Welcome to pay attention "100 complete OpenCV routines" Series, continuously updating Welcome to pay attention "Python Xiaobai's OpenCV learning course" Series, continuously updating 4. High pass filter in frequency ...

This column mainly involves 100 Python zero basic programming questions, most of which are translated on Github 100+ Python challenging programming exercises , if you don't have dyslexia in English, you can go to Github to read. There are 100 questions in the column, which is divided into four chapters with 25 questions in each chapter; This bl ...

delete 1. Delete interface class CateView(View): def delete(self, request): # 1. Get the parameters in the route cate_id = request.GET.get('cate_id') # 2. Get the object to delete # pk stands for primary key try: cate_obj = Cate.objects.get(pk=cate_id) except Cate.DoesNotExi ...

day24 stage summary Curriculum objective: summarize and test the knowledge points in the third module stage, so that students can better master the relevant knowledge of this module. Course overview: Knowledge supplementStage summary (mind map)Examination questions 1. Supplement of knowledge points 1.1 concurrent programming & Networ ...

Hello, I am a sophomore of e-commerce who is not a computer major but is very interested in python crawler This code is for me to look back and give you reference and exchange together in the future Can reprint, but indicate the original, thank you!   Function of jinjia2: render template jinjia2 is a third-party module and needs to be inst ...

python visual chart analysis -- the use of pyecharts Library preface pyecharts Official website https://pyecharts.org/ Simple API design, smooth use, and support chain call Includes 30 + common charts, everything Support mainstream Notebook environment, Jupyter Notebook and jupyterab It can be easily integrated into mainstream Web framework ...

reference: New Year ~ arrange a fireworks show in Python (qq.com) The source code is attached at the end Principle introduction: Before introducing the code, first introduce the basic principle of Pygame drawing fireworks. Fireworks are divided into three stages from launch to bloom: 1. Launch stage: in this stage, the shape of fireworks is ...