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How to check if a String is numeric in Java
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@kape123 :) sure "123.456" doesn´t contain digits.
– Ahmed Alejo
Nov 14 '14 at 18:01
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Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
...technique for left-padding to any desired width:
declare @x int = 123 -- value to be padded
declare @width int = 25 -- desired width
declare @pad char(1) = '0' -- pad character
select right_justified = replicate(
@pad ,
@width-le...
How do I create a readable diff of two spreadsheets using git diff?
...sxd OpenOffice.org
.odt/.ods/.odp/.odg Open Document
.wj2/wj3/wk3/wk4/123 Lotus 123
.wri Windows3.1 Write
.pdf Adobe PDF
.mht Web Archive
.eml Exported files from OutlookExpress
Regard, Andres
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curl json post request via terminal to a rails app
...firstname","last_name":"lastname","email":"email@email.com","password":"app123","password_confirmation":"app123"}}' \
http://localhost:3000/api/1/users
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How to sort an array in Bash
...ven make it more generic and have it use a first argument that is the test function use, e.g.,
#!/bin/bash
# quicksorts positional arguments
# return is in array qsort_ret
# Note: iterative, NOT recursive! :)
# First argument is a function name that takes two arguments and compares them
qsort() {
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Determine the data types of a data frame's columns
...7.6, 167.6...
$ hp <dbl> 110, 110, 93, 110, 175, 105, 245, 62, 95, 123, 123, 180, 180, 180, 205, 215...
$ drat <dbl> 3.90, 3.90, 3.85, 3.08, 3.15, 2.76, 3.21, 3.69, 3.92, 3.92, 3.92, 3.07, 3.0...
$ wt <dbl> 2.620, 2.875, 2.320, 3.215, 3.440, 3.460, 3.570, 3.190, 3.150, 3.440, 3...
How do you use https / SSL on localhost?
...ompt:
cd C:\Program Files (x86)\Windows Kits\8.1\bin\x64
makecert -r -n "CN=localhost" -b 01/01/2000 -e 01/01/2099 -eku 1.3.6.1.5.5.7.3.3 -sv localhost.pvk localhost.cer
cert2spc localhost.cer localhost.spc
pvk2pfx -pvk localhost.pvk -spc localhost.spc -pfx localhost.pfx
2.) Import certificat...
Excel “External table is not in the expected format.”
...ed Jun 5 '13 at 12:46
jordanhill123jordanhill123
3,86222 gold badges2727 silver badges3838 bronze badges
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surface plots in matplotlib
...n in 2d arrays.
If all you have is a list of 3d points, rather than some function f(x, y) -> z, then you will have a problem because there are multiple ways to triangulate that 3d point cloud into a surface.
Here's a smooth surface example:
import numpy as np
from mpl_toolkits.mplot3d impor...
Unicode与UTF-8互转(C语言实现) - C/C++ - 清泛网 - 专注C/C++及内核技术
...rticles/Unicode.html
* 谈谈Unicode编码
http://www.pconline.com.cn/pcedu/empolder/gj/other/0505/616631.html
* RFC3629: UTF-8, a transformation format of ISO 10646(如果实现UTF-8的规定)
http://www.ietf.org/rfc/rfc3629.txt
Unicode UTF-8 互转