Tag：numerical value
-
Time：2021-10-17
##1. Operator 1.1. Arithmetic operator operator describe example result + addition var num = 1 + 2; 3 – subtraction var num = 4 – 3; 1 * multiplication var num = 4 * 3; 12 / division var num = 6 / 3; 2 % Surplus var num = 7 % 3; 1 Normal […]
-
Time：2021-10-7
A funny little friend asked me what the π visual effect of mathematics is. So I wrote a funny application to draw the color of π in WPF application. The principle is to read the value after the decimal point of π, then use the teaser algorithm to convert it into RGB color pixels, and […]
-
Time：2021-10-5
1、 Overview of operand stack management instructions Just like manipulating the stack in a normal data structure, the JVM providesThe operand stack management instruction can be used directly to manipulate the operand stack Common instructions include the following: Pop one or two elements from the top of the stack and discard them directly, using:pop、pop2instructions Copy […]
-
Time：2021-9-23
Because Java is a strongly typed language, it is sometimes used in operationsType conversion。 Integer, constant and character type data can be mixed. In operation,Different types of data are converted to the same type first, and then perform the operation. The type conversion level can be divided from low level to high level, mainly according […]
-
Time：2021-9-10
By VladSource Vlad (official account: fulade_me) Function input () functioninput()Pause the program and wait for the user to enter some text. After getting user input, python stores it in a variable for your convenience.For example, the following program allows the user to enter some text and present it to the user: message = input(“Tell me […]
-
Time：2021-9-5
Displays the condensed version of bytecode instructions javap -c [.class] Displays the condensed version of bytecode instructions javap -v [.class] Bytecode Mnemonic Instruction meaning 0x00 nop Don’t do anything? 0x01 aconst_null Push null to the top of the stack 0x02 iconst_m1 Push int type – 1 to the top of the stack 0x03 iconst_0 Push […]
-
Time：2021-9-5
ruleYou can adjust the script to suit your use according to the following rules. Identify that the utilization rate of table space (non extended) is > = 90%, and the remaining available space is < = 100000m;Identify the part before \ or / in the data file name as the data file path (distinguish between […]
-
Time：2021-9-2
By Andy ReaganCompile VKSource: towards Data Science In the world of MATLAB and numerical calculation, the for loop is cut off, and the vector is the king. During my doctoral degree, Professor lakoba’s numerical analysis course was one of the most challenging courses I attended. After the course, I had a deep understanding of vector […]
-
Time：2021-9-1
Author | jeskson Source: dada front end Tavern 1 How important is JavaScript? Let me talk about the syntax, operators, data types, built-in functions, etc. Syntax: In JavaScript, variables, function names and operators are case sensitive, so variable name DA and variable name DA are two different variables respectively. Identifier: What is an identifier? It […]
-
Time：2021-8-16
Title Requirements: Idea: Binary search, definition, left, right, mid If the value of the right position is greater than the middle, the right is an ordered array, so the minimum value on the right is the value of Mid. assign mid to right to see if there are smaller ones on the left other: If […]
-
Time：2021-8-7
Requirements: When users do not operate the computer for a long time, they should automatically exit the system, so as to prevent others from using the computer to operate the data of the previous user.Or users do not operate for a long time, hide the mouse, etc. thinking Monitor mouse movement and keyboard operation. Set […]
-
Time：2021-8-4
11 small ways to improve programming ability Step 1 Analyze problems clearly If you can’t understand the problem and the specific situation before solving the problem, it will easily get stuck or lead to more confusion when solving the problem. Step 2 Think twice about how to solve the problem Sort out solutions and repeatedly […]
