Basic Graph Theory and Search
DFS (Depth First Search)
basic concept
Depth First Search An algorithm for traversing or searching a tree or graph. Traverse the nodes of the tree along the depth of the tree, searching the branches of the tree as deep as possible. When the edge of node v has been explored or the node does not meet the conditions during the search, the se ...
Posted by dennismcdougall on Sun, 05 Feb 2023 07:28:39 +0300
Numerical-analog factor analysis from scratch
Table of contents
1. Concept
1.1 Concept
1.2 Basic form ·
1.3 Basic process
1.4 Comparison
1.5 Example of factor analysis:
1.6 Principle and properties
1.7 Two tests:
EditEdit 2. Factor analysis based on Matlab
3.2 factoran() method
3. Factor analysis based on python
3.1 Step analysis
3.2 Code
4.3 Displaying Chinese in ...
Posted by new2code on Sun, 05 Feb 2023 13:28:59 +0300
uniapp defines several ways of animation
The premise of this chapter is that everyone knows the basic properties of animation, such asanimation-name, animation-duration, animation-timing-function, animation-delay, animation-iteration-count, and animation-direction properties.learn more animation relevant content.Now make an animation effect of shaking left and right, the effect is as ...
Posted by saltious on Fri, 03 Feb 2023 14:21:35 +0300
Improve your awareness of the implementation details of the Promise.all() and Promise.race() functions in ES6
Table of contents
0.ES6
Promise.all() and Promise.race() functions in ES6
Added: ES6 Promise.race and Promise.all methods
1. Use of Pomise.all
2. The use of Promise.race
0.ES6
ES6 (ECMAScript 6) is the next generation standard of ECMAScript, its syntax is clearer, more readable, and more powerful. It provides new JS language feature ...
Posted by redbullmarky on Mon, 06 Feb 2023 09:57:38 +0300
Redis quick start
Table of contents
1. Get to know Redis first
1.1. Understanding NoSQL
1.1.1. Structured and unstructured
1.1.2. Association and non-association
1.1.3. Query method
1.1.4. Transactions
1.1.5. Summary
1.2. Understanding Redis
1.3. Install Redis
1.3.1. Dependent library
1.3.2. Upload the installation package and decompress it
1.3.3. St ...
Posted by Zssz on Mon, 06 Feb 2023 01:08:40 +0300
Have you used all the APIs of vue3 commonly used responsive objects?
Table of contents
Ⅰ. ref, reactive (recursive monitoring)
Ⅱ. isRef, isReactive (judgment)
Ⅲ. toRef and toRefs (deconstruction)
Ⅳ. toRaw , markRaw (remove proxy)
Ⅴ. unref ( copy )
Ⅵ. shallowRef, shallowReactive (non-recursive monitoring)
Ⅶ. triggerRef (force update)
Vue 3 provides several reactive objects to manage state in Vue applic ...
Posted by WickedStylis on Fri, 03 Feb 2023 01:42:33 +0300
Basic SELECT statement and display table structure
Article directoryBasic SELECT statementSELECT...SELECT ... FROMcolumn aliasremove duplicate rowsNull values participate in operationsEmphasisQuery constants (add constant fields to queries at the same time)show table structurefilter datapractice questionsBasic SELECT statementSELECT...SELECT 1+1, 2+2;# Writing this directly is equivalent to t ...
Posted by jsinker on Thu, 02 Feb 2023 10:59:00 +0300