Blue Leopard 2.8 programming questions
Blue Leopard 2.8 programming questions 1. Solve the quadratic equation ax`2+bx+c=0 #include using namespace std; #include int main(){ double a,b,c,x1,x2,t; coutb>>c; t=b*b-4*a*c; //root formula x1UTF-8...
Posted by rjlowe on Thu, 30 Jun 2022 21:03:51 +0930
[Python] GDP analysis and forecast
✨ Blogger wangzirui32 💖 You can like, collect and pay attention to what you like~~ 👏 My 162nd original work 👉 This article was first published in CSDN. It is forbidden to reprint without permission hello, I'm wangzirui32. Today, let's learn how to analyze and forecast GDP. Let's start! 1. dUTF-8...
Posted by flash gordon on Fri, 01 Jul 2022 02:11:09 +0930
Java knowledge about arrays
Array of Java Definition of array 1. An array is an ordered collection of data of the same type 2. Array describes several data of the same type, which are arranged and combined in a certain order 3. One of the data is called an array element, and each array element can be accessed through a suUTF-8...
Posted by Lodar on Sun, 03 Jul 2022 04:29:26 +0930
Sharing about modules and modules in Nestjs
Modules in Nestjs root module After the project is created, nestjs will have a root module by default, that is: src/app.module.ts import { Module } from '@nestjs/common'; import { AppController } from './app.controller'; import { AppService } from './app.service'; @Module({ imports: [], controlUTF-8...
Posted by Andy17 on Mon, 11 Jul 2022 06:57:45 +0930
Test the hardware services of the Application Frameworks layer for the built-in Java application of the Android system on Ubuntu...
This article is reproduced from: http://blog.csdn.net/luoshengyang/article/details/6580267 we are at Android The purpose of adding hardware services to the system is to allow the APP of the application layer to pass Java interface to access hardware services. So, how does the APP access the haUTF-8...
Posted by LostNights on Tue, 12 Jul 2022 03:36:12 +0930
m simulation of DQPSK modulation and demodulation technology based on matlab
catalogue 1. Algorithm description 2. Some procedures 3. Preview of some simulation diagrams 4. Source code acquisition method 1. Algorithm description 4-digit DPSK is usually recorded as DQPSK. DQPSK signal coding method is shown in the table below: a b θk Mode A Mode B 0 0 90° 135° 0 1 0° 45°UTF-8...
Posted by digitalbart2k on Sat, 16 Jul 2022 08:29:43 +0930
Java Excel file parsing and large Excel file reading and writing
preface: In the Java technology ecosystem, the mainstream technologies that can process Excel files include Apache POI, JXL, Alibaba EasyExcel, etc. Apache POI parses based on DOM and loads files directly into memory, so it is fast and suitable for application scenarios with small amount of ExcUTF-8...
Posted by trygve on Tue, 19 Jul 2022 12:59:28 +0930
Nine should-know single-line Python codes
When we start learning Python, we usually give priority to writing code that does the work, rather than focusing on readability, simplicity, and efficiency. This is perfectly fine, but there are ways to shorten our Python code without ignoring readability. One-line Python code, as long as we usUTF-8...
Posted by splatek on Wed, 20 Jul 2022 03:25:14 +0930
Basic content of binary tree
1. The basic concept of tree Note: In a tree structure, there can be no intersection between subtrees, otherwise it will not be a tree structure. Subtrees are disjoint. Except for the root node, each node has one and only one parent node. A tree of N nodes has N-1 edges. The degree of a node: UTF-8...
Posted by sandrine2411 on Sat, 23 Jul 2022 02:33:56 +0930
Static lifecycle promotion of temporary references
[Rust official forum post sorting] series: https://zjp-cn.github.io/rust-note/forum/static-promotion.html static promotion Static lifecycle promotion of temporary references stay RFC 1414: rvalue static promotion The static life cycle promotion function of the right value is implemented in, thaUTF-8...
Posted by dmikester1 on Sun, 24 Jul 2022 04:51:14 +0930