Programming VIP

When using mplfinance, we can get a variety of image styles by setting the parameter style. The commonly used built-in styles of the style parameter are: 'bias',' blueskies', 'brasil', 'charles',' checkers', 'classic', 'default', 'mike', 'nightclouds',' sas', 'stars and strings',' yahoo '. Many of these built-in styles follow the habits of US s ...

1. Simulated annealing algorithm Simulated annealing algorithm draws lessons from the idea of statistical physics. It is a simple and general heuristic optimization algorithm, and has probabilistic global optimization performance in theory. Therefore, it has been widely used in scientific research and engineering. Annealing is a process in whi ...

Recently, a classmate came to me because his graduation project was about to be concluded. His project was to make a car that could recognize the QR code and realize ranging. At the same time, he also hoped that the car would keep a constant distance from the QR code. That is, when the QR code approaches the car, the car will retreat, and when ...

Functional programming Function is a kind of encapsulation supported by Python built-in. We can decompose complex tasks into simple tasks by disassembling large pieces of code into functions and calling functions layer by layer. This decomposition can be called process oriented programming. Function is the basic unit of process oriented pr ...

What is a module Module is equivalent to the toolkit in python, which packages the code of specific functions into modules and calls them when needed Module benefits Lightweight program: the module can simplify the software and speed up the reading speed. It can be called when neededConvenient reference: package the code of specific function ...

Computer vision quick start learning notes Great cause needs great theory to guide. Code without theory is a rogue I Overview of artificial intelligence Turing test: in 1950, Turing put forward the Turing test, that is, a person carries out a series of questions and answers with the other party in a special way without contacting the other ...

LeetCode notes: Weekly Contest 238 0. Post game summary1. Topic 1 1. Problem solving ideas2. Code implementation 2. Topic 2 1. Problem solving ideas2. Code implementation 3. Topic 3 1. Problem solving ideas2. Code implementation3. Algorithm optimization 4. Topic 4 1. Problem solving ideas2. Code implementation 0. Pos ...

Part 27 shift inversion iteration to find the nearest eigenvalue and eigenvector Shift inverse iteration An eigenvalue method to realize vector iterative convergence more directly than the "maximum" eigenvalue method is Shift vector iteration method Rewrite to the following form Where p is a scalar "shift" value, [I] is t ...

In the statistical table, the statistics are usually accumulated in the current year, completed in the same period of the previous year (accumulated), completed in the current period (such as the current month) and completed in the last month, and the year-on-year and month on month analysis are carried out. The following example is shown in th ...

This document uses the popular pom design pattern to set up the test framework, write test cases, generate test reports, and finally integrate jenkins. 1, selenium selenium is an open source automatic testing tool for web ui, which will not be introduced in detail. 2, Environment construction The environment construction is very simple. P ...