package kju.o; import static kju.print.Printer.*; import java.text.*; class MathDemo { public static void main(String[] args) { double d = 1.2458; println(round(d)); //prints:1.25 } static String round(double d) { DecimalFormat nf = new DecimalFormat…

I have I double value like this one 17.125. It should be rounded up to 17.13 If I use the simple method like %.2f it shows me 17.12 I also followed several methods described in other threads here like using NumberFormatter and so on - but without luc…

公司内部有些C#服务使用proto-net,引入了bcl.proto中的bcl.Decimal.bcl.DateTime等.对于java的proto生成代码需要对bcl.Decimal.bcl.DateTime转换成本地支持的数据类型.bcl.Decimal结构为32位int保存高位.64位long保存低位,signScale 保存符号(正负)及模数.转换过程如下: bcl.Decimal  --> BigDecimal 1. 将高32位的int以高位在前格式转换为4个长度的byte数组: 2.…

Last Digits Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2233   Accepted: 474 Description Exponentiation of one integer by another often produces very large results. In this problem, we will compute a function based on repeated expone…

#include <cstdio> #include <algorithm> #include <cstring> #include <iostream> using namespace std; typedef long long ll; const int maxn = 4e4 + 100; int p[100][100]; int exa[maxn]; bool check(int a,int b,int c,int d,int f) { int y…

https://forums.asp.net/t/1300113.aspx?SqlBulkCopy+Precision+Error+from+C+Double+to+Sql+Decimal+ Before I bulkcopy data into the database, I use DataTable to store the bulk of data. Since the value to be stored is declared as double in the DataTable,…

注:本文分析内容基于 MySQL 8.0 版本 文章开始前先复习一下官方文档关于 DECIMAL 类型的一些介绍: The declaration syntax for a DECIMAL column is DECIMAL(M,D). The ranges of values for the arguments are as follows: M is the maximum number of digits (the precision). It has a range of 1 to 65…

DecimalFormat继承自NumberFormat,可以使用它将十进制的数以不同形式格式化为字符串形式,可以控制前导和尾随0.前缀.后缀.分组(千).小数分隔符等,如果要更改格式符号(例如小数点分隔符). 它有各种各样的设计使其能够解析和格式化数字的特征区域设置,包括对西方.阿拉伯和印度数字的支持.它也支持不同类型的数字,包括整数(123),定点数字(123.4),科学符号(1.23 e4),百分比(12%),以及货币金额(123美元).所有这些都可以本地化. 可以将其DecimalFor…

1. Introduction 1.1. About 1.2. Sphinx features 1.3. Where to get Sphinx 1.4. License 1.5. Credits 1.6. History 2. Installation 2.1. Supported systems 2.2. Compiling Sphinx from source 2.2.1. Required tools 2.2.2. Compiling on Linux 2.2.3. Known comp…

# encoding: utf-8 # module __builtin__ # from (built-in) # by generator 1.145 from __future__ import print_function """ Built-in functions, exceptions, and other objects. Noteworthy: None is the `nil' object; Ellipsis represents `...' in sl…