format | 易学教程

How to display formatted numbers from a cell array with n decimal places

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问题 I have a cell array that contains both numbers and strings. I want to print the cell array so that I will see only 5 numbers after the decimal point. For example: c{1, 1} = pi; c{2, 1} = pi / 2; c{3, 1} = pi / 4; c{4, 1} = 2 ^ 0.5; After using format long this is what I receive: >> c c = [3.141592653589793] [1.570796326794897] [0.785398163397448] [1.414213562373095] But I want that the output will be: >> c c = [3.14159] [1.57079] [0.78539] [1.41421] 回答1: A possible solution is to generate a

Locale date format in PHP5

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问题 my site changes its locale dependent upon either user settings or browser settings (where the user hasn't set their preference). I am using amline charts, the stock chart specifically, which requires the date format in 'MM/DD/YYYY' or 'DD-MM-YYYY', I guess so the chart knows how to understand the dates. There are many ways to format a date dependent upon the computer locale, however I can't find a way to get the locale format (as above). 回答1: What's the problem? date('m/d/Y') or date('d-m-Y')

Get normal user readable date/time with php

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问题 I know this question has been asked 2-3 times before, and I am using a function which I found in one of the answers(check it here) from those questions, but it doesnt seem to be working fine for me, i asked there in comments but didnt get any reply, so I am opening a new question here. following is the code to get plain text date/time from a datetime(mysql type). function getElapsedTime($time_stamp) { $ts = convert_datetime($time_stamp); $time_stamp = $ts; $time_difference = strtotime('now')

Python: Read and write the file of complex and reapeating format

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问题 To begin with, sorry for poor Engish. I have a file with repeating format. Such as 326 Iteration: 0 #Bonds: 10 1 6 7 14 54 70 77 0 0 0 0 0 1 0.693 0.632 0.847 0.750 0.644 0.000 0.000 0.000 0.000 0.000 3.566 0.000 0.028 2 6 3 6 15 55 0 0 0 0 0 0 1 0.925 0.920 0.909 0.892 0.000 0.000 0.000 0.000 0.000 0.000 3.645 0.000 -0.040 3 6 2 8 10 52 0 0 0 0 0 0 1 0.925 0.910 0.920 0.898 0.000 0.000 0.000 0.000 0.000 0.000 3.653 0.000 0.000 ... 324 8 323 0 0 0 0 0 0 0 0 0 100 0.871 0.000 0.000 0.000 0.000

Changing a decimal format within the entire code using an option created in a switch menu

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问题 When writing the code, one of the tasks was to allow the user to change the decimal format within the entire program. The program consists of multiple calculators, all of them should be able to give decimal results. The user has then a choice of how many decimal places they would like to see. I know this can be done with format options just not sure how. /Answer given already 回答1: Create a variable containing a DecimalFormat DecimalFormat df = new DecimalFormat(); In menu option 4 where

Developing a (file) exchange format for java

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问题 I want to come up with a binary format for passing data between application instances in a form of POFs (Plain Old Files ;)). Prerequisites: should be cross-platform information to be persisted includes a single POJO & arbitrary byte[]s (files actually, the POJO stores it's names in a String[]) only sequential access is required should be a way to check data consistency should be small and fast should prevent an average user with archiver + notepad from modifying the data Currently I'm using

How to customize date format when creating excel cells through javascript (activexobject)?

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问题 I'm trying to convert an HTML table to Excel in Javascript using new ActiveXObject("Excel.application") . Bascially I loop through table cells and insert the value to the corresponding cell in excel: //for each table cell oSheet.Cells(x,y).value = cell.innerText; The problem is that when the cell is in date format of 'dd-mm-yyyy' (e.g. 10-09-2008), excel would read as 'mm-dd-yyyy' (i.e. 09 Oct 2008). I tried to specify NumberFormat like: oSheet.Cells(x,y).NumberFormat = 'dd-mm-yyyy'; But, it

How to customize date format when creating excel cells through javascript (activexobject)?

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c#语言学习专题二 String

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 前记 msdn上前几个部分我就不说了吧！就从string开始说起！一个程序员的职业生涯很多时候都是在跟这个东西打交道！内容一，string和String MSDN中对string的说明： string is an alias for String in the .NET Framework。string是String的别名而已，string是c#中的类，String是Framework的类，C# string 映射为 Framework的 String。如果用string,编译器会把它编译成String，所以如果直接用String就可以让编译器少做一点点工作。如果使用C#，建议使用string，比较符合规范。 string始终代表 System.String(1.x) 或 ::System.String(2.0) ，String只有在前面有using System;的时候并且当前命名空间中没有名为String的类型（class、struct、delegate、enum）的时候才代表System.String。 string是c#中的类，String是.net Framework的类(在c# IDE中不会显示蓝色) c# string映射为.net Framework的String 如果用string

SQL auto converts decimal to numeric when select & insert

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问题 I have SQL Server 2008 R2 and linked SQL Server 2012. When I do the following SELECT * INTO dbo.Local_table FROM dbo.Linked_table all decimal columns automatically get converted into numeric. What is the reason and how can I get rid of it? 回答1: This is automatic conversion that occurs with most SQL Servers. You'll find this happening with at least, but not limited to, server year versions 2000-2014. I don't know of a way to get rid of this restriction because it's a built in server feature