Windows - Help with Java high-precision operation problems

The company's projects required a lot of high-precision operations. At first, we used double-type operations. Later, we found that the accuracy of some values ​​exceeded the ideal range after using double-type operations, so we used BigDecimal to calculate. The current problem is the operation effic...

typecho 2017-06-28 09:22:10 0  3  947

java - Precision issues in three-point collinearity and other point-based algorithms

In the algorithm for calculating the collinearity of three points, I tried to calculate that the slope of any two straight lines is the same and use Heron's formula to calculate the area to be 0. The problems encountered are as follows: the length cannot be expressed accurately, such as (1,1 ), the ...

为情所困 2017-05-27 17:40:03 0  1  600

Calculate the time complexity and space complexity of a program

Can you explain how to calculate the time complexity and space complexity of a program based on a specific algorithm (such as a sorting algorithm)?

Dream（☆_☆） 2019-10-17 22:02:47 0  2  1146

objective-c - String width calculation

I use the NSAttributedString method. When the string contains the "%" percent sign, the width calculation is incomplete. Does anyone know what is the reason?

为情所困 2017-05-02 09:36:56 0  1  576

c - How to integrate the three-axis angular velocity of the gyroscope to calculate the angle

How to integrate the three-axis angular velocity of the gyroscope to calculate the angle

某草草 2017-05-02 09:33:36 0  1  1404

objective-c - 用约束调整label，如何利用约束计算其父控件的动态高度

描述你的问题在storyboard上 拖一个view 设置好约束， 拖一个label ，设置左、上、宽度约束，label 文字变化的时候view 高度也要跟随变化，如何计算label文字变化 贴上相关代码 (void)viewDidLoad { {代码...} } ...

ringa_lee 2017-05-02 09:18:30 0  1  671

html5 - How is the height rem of mobile phone adaptive pictures calculated?

The mobile webpage layout is two li and one line occupying the full width {code...} rem is automatically changed according to the font-size of html. How to calculate the initial width and height value of this li?

怪我咯 2017-06-22 11:53:24 0  1  1202

Objective-c - TextKit path exclusion height calculation issue

To insert pictures into articles to implement path exclusion, UITextView dynamically calculates the height using: boundingRectWithSize:options:context: However, this method is not compatible with path exclusion. The height will be much smaller than the actual height, but there is no problem using th...

大家讲道理 2017-05-02 09:24:31 0  1  519

javascript - How to get the height of an element accurately to decimal places in js (non-jq)

Use offsetHeight to get the height of the element and find that it is an integer. However, you can see in the console of Google Chrome that the height actually has decimals. Since precise scrolling operations are required, it must be accurate. Please help.

怪我咯 2017-05-16 13:20:53 0  1  540

objective-c - 动态改变tableView的高度

动态改变tableView的高度 动态计算Cell高度后，改变tableView的高度。因为tableView要设置成不可滚动.获取数据后，计算每一个cell的高度，在layoutsubViews中给tableView高度重新赋值的时候无限循环了 {代码...} ...

黄舟 2017-05-02 09:22:26 0  0  448

c++ - What is the principle of this high-precision factorial operation?

{Code...} I want to write a comment to help myself understand, but I can’t continue writing in the middle of writing. Why are the three lines in the middle of for written like that?

黄舟 2017-05-16 13:28:11 0  3  747

How should I choose a GPU server?

Currently, GPU servers are mainly used in different scenarios such as scientific computing and video encoding and decoding. It can provide applications with extraordinary accelerated computing capabilities and can offload application computing-intensive workloads to the GPU. From a user perspective,...

七秒 2021-10-25 12:24:31 0  3  1206