• ## Computer system 6-> group and Architecture 3 | MIPS instruction set (middle) | MIPS assembly instructions and machine representation

Time：2022-6-11

PreviousComputer system 5-> group count and Architecture 2 | MIPS instruction set (I) | instruction systemFrom the top level, it explains what features and working principles an instruction set / instruction system should have. This article focuses on the MIPS instruction set (mips32) to see what its assembly statements and machine languages look like. reference […]

• ## JS timestamp conversion, obtaining the current time, month, day and sorting

Time：2022-5-24

1. Timestamp conversion (10 digits) / (13 digits) //Time stamp 13 bits Formatdate: function (time) {// timestamp to date let date = new Date(time); let y = date.getFullYear(); let MM = date.getMonth() + 1; MM = MM < 10 ? (‘0’ + MM) : MM; let d = date.getDate(); d = d < 10 ? […]

• ## [bit operation] sword finger offer 56 The number of occurrences of numbers in the array

Time：2022-5-15

This is the topic of a series of bit operations. This paper will start with the simplest problem from simple to deep: Question 1: Only one number in an array has appeared once, and the other numbers have appeared twice. Please find the number that appears only once. The required time complexity is\(O(n)\), the spatial […]

• ## Prediction of power load time series by R language quantile regression, GAM spline curve, exponential smoothing and SARIMA

Time：2022-5-15

Original link:http://tecdat.cn/?p=18359  Original source:Tuoduan data tribe official account Power load forecasting is the basis of power grid planning, and its level will directly affect the quality of power grid planning. In order to accurately predict power load, it is necessary to model. In this paper, quantile regression, GAM spline curve, exponential smoothing and SARIMA model […]

• ## Write a tool class that generates ID

Time：2022-4-2

You can follow the blogger’s personal blog for more information.Author: surpasserLink address:https://www.surpass.org.cn As long as the table is involved in the project at ordinary times, you will be able to contact many kinds of ID numbers. Bloggers sort out some commonly used ID formats and integrate an ID generation tool class for your reference. If […]

• ## Algorithm notes – piecemeal knowledge points

Time：2022-3-29

10^nbyn+1Digits: 10 ^ 3 for 1000 Read in doubleSyntax of type variable: double a; scanf(“%lf”,&a); Output doubleSyntax of type variable: printf(“%f”,a); perhaps printf(“%.2f”,a); To initialize a character array: char str[100]= “123a”; //Incorrect writing in comments //char str[100]; //str= “123a”; //Incorrect writing in comments //char str[100]; //str[100]= “123a”;

• ## #Circrna from introduction to mastery

Time：2022-3-19

#Circrna from introduction to mastery 【01】Reliable summary of miRNA, lncrna and circrna 【02】First, let’s take a look at the background of circrna Three ways of circrna formation:Circrna production includes exon cyclization and intron cyclization. Three functions of circrna:1. Act as miRNA “sponge”2. Regulation of transcription and splicing3. Interaction with RNA binding protein Collected and sorted […]

• ## On digital DP

Time：2022-2-16

On digital DP What is digital DP If you encounter a problem, it says, “try to find a range[x,y], find the number on each digit in all numbers in this range to meet Number of conditions. ” This is a general problem of digital DP. The main feature of this kind of problem is to […]

• ## Detailed interpretation and mapping of qqplot of 10x single cell (10x spatial transcriptome) Seurat analysis

Time：2022-2-6

The following picture should be familiar to everyone jsplots-1.png This graph is a functionJackStrawPlot()We should all know how many principal components (PCS) are used for downstream analysis. Let’s take a look at the explanation of this figure. Plots the results of the JackStraw analysis for PCA significance. For each PC, plots a QQ-plot comparing the […]

• ## How can C / C + + keep only 4 significant digits?

Time：2022-1-26

Original text:https://tlanyan.pp.ua/c-cpp-keep-significant-figures/ problem Friends want to use numerical examples to verify the impact of rounding error on the stability of the algorithm. The first problem encountered in practice is: how can C / C + + retain only 4 significant figures? If you have been exposed to Java / JS and other languages,Keep several decimal […]

• ## “Non promotion” why do I say that it was originally a “digital board” exclusive to designers and a meeting artifact of program APE + research dog?

Time：2022-1-21

Introduction: I had a painting dream. After all, who didn’t grow up watching the second dimension in my youth. When I started a tablet (something that allows you to use a pen instead of a mouse, suitable for painting on a computer),I found that its function is far more than painting.This enables me to express […]

• ## Notes on significant figures and measured values of College Physics Experiments

Time：2022-1-19

I have to say that the expression of the effective number and measured value of college physics experiment really confused me. The teacher briefly passed the introduction. As a result, the requirements of the experimental report were strict Here according toInformation collected onlineandPersonal understandingMake a summary for later reference Teaching materials used in our school:College […]