1. Experiment purpose and requirements Use Verilog programming to implement decimal frequency division. The input clock signal frequency is 50MHz. First, the 42.3MHz clock signal is obtained by decimal frequency division from 50MHz, and then the 42.3MHz clock frequency is divided to obtain 1Hz, 2Hz, 3Hz, 4Hz, 5Hz, 6Hz, and 7Hz. , 8Hz, 9Hz, 10Hz […]
Tag: decimal
6 untouchable pitfalls of BigDecimal
Six untouchable pitfalls of BigDecimal BigDecimal is a class in Java for handling arbitrary precision decimal numbers. Unlike the basic data types double and float, the BigDecimal class can retain any number of decimal places and supports high-precision mathematical operations. However, since BigDecimal handles very large numbers, you need to pay attention to some things […]
Using BigDecimal in Java to perform operations such as addition, subtraction, multiplication, and division on string values
Directory of series articles SpringBoot + Vue3 implements login verification code function Java implements sending emails (automatically sending emails regularly) Use Redis from another angle to solve the problem of cross-domain access Session Redis cache penetration, breakdown, avalanche problems and solutions Use of Spring Cache – Quick Start List＜HashMap＜String,String＞＞implement custom string sorting (key sorting, Value […]
Use BigDecimal with caution online, don’t get kicked out
ClickFollowOfficial account:Internet Architect, backend reply2TGet2TB< strong>Learning resources! Previous article: Sharing of useful learning materials for 2T architects 1. Overview of BigDecimal The API class BigDecimal provided by Java in the java.math package is used to perform precise operations on numbers with more than 16 significant digits. The double-precision floating-point variable double can handle 16-bit significant […]
[CISCN 2019 Preliminary Competition] Love Math executes commands through hexadecimal conversion
Table of Contents hex2bin bin2hex base_convert dynamic function The first solution is to obtain parameters through get bypass The second solution is to read the request header getallheaders echo a,b The third solution is XOR to get more characters This question is also very interesting! By specifying the whitelist and blacklist, the function is specified […]
Decimal precision loss problem in js
1. Why is there a problem of loss of calculation accuracy? The problem of decimal point precision loss in JavaScript is due to the way it uses floating point number representation. JavaScript uses double-precision floating-point number representation, also known as the IEEE 754 standard, which uses 64 bits to represent a number, of which 52 […]
Problems and solutions for calculating decimals in js
JS decimal operations may cause precision problems js number type The number type in JS only has the number type. The number type is equivalent to the double type (Double-precision floating point type) in other strongly typed languages. It does not distinguish between floating point types and integer types. number type is in different bases […]
C# Example of numerical formatting method that dynamically retains decimal places – retaining two non-zero digits after the decimal point for rounding
C# Example of numerical formatting method that dynamically retains decimal places – retaining two non-zero digits after the decimal point for rounding 1. Function introduction 2. Code cases 3. Output results 4. Encapsulation extension method 5. Console call 6. Other method addresses 1. Function introduction 1. If the input number is an integer, the string […]
Math class, BigInteger, BigDecimal, Date, Calendar, SimpleDateFormat, LocalDate, Period, Duration, System and Arrays class
Math class 1. Overview: ? Math tools 2.Features: ? a. Construct private ? b. Methods are all static 3.Use: ? Math. Directly call the class name 4.Math class method static int abs(int a) -> Find the absolute value of the parameter static double ceil(double a) -> round up static double floor(double a) -> round down […]
QML implements file hexadecimal data display
Foreword Drag and drop a binary file directly into Qt Creator to directly view the data format displayed in hexadecimal, such as: It still takes a lot of time to achieve such an effect. I found many examples on the Internet. One of the open source codes works well (refer here), but it is implemented […]