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Complex numbers usage in python [closed]
...at isn't confusing enough, some use 'i' to represent the "positive" square root of one, whereas 'j' is the "negative" square root of one. Thus i == -j. FYJ...
– jvriesem
Sep 16 '16 at 4:28
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Add Favicon to Website [duplicate]
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Simply put a file named favicon.ico in the webroot.
If you want to know more, please start reading:
Favicon on Wikipedia
Favicon Generator
How to add a Favicon by W3C (from 2005 though)
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Execute ssh with password authentication via windows command prompt
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What about this expect script?
#!/usr/bin/expect -f
spawn ssh root@myhost
expect -exact "root@myhost's password: "
send -- "mypassword\r"
interact
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Access a variable outside the scope of a Handlebars.js each loop
...an use absolute path like this:
<option value="{{id}}">{{title}} {{@root.user.path.to.externalValue}}</option>
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Count number of files within a directory in Linux? [closed]
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An effective native way without using pipe: du --inodes [root@cs-1-server-01 million]# du --inodes 1000001 ./vdb.1_1.dir 1000003 . [root@cs-1-server-01 million]#
– Venfah Nazir
Jan 9 at 7:28
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Installation Issue with matplotlib Python [duplicate]
...assume you have installed the pip matplotlib, there is a directory in your root called ~/.matplotlib.
Create a file ~/.matplotlib/matplotlibrc there and add the following code: backend: TkAgg
From this link you can try different diagrams.
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解决：error while loading shared libraries: libpcre.so.1: cannot open ...
...原因是缺少依赖库，使用ldd命令查看依赖库，例如：
[root@info lib]# ldd /usr/local/apache2/bin/httpd
libaprutil-0.so.0 => /usr/local/apache2/lib/libaprutil-0.so.0 (0x00242000)
libexpat.so.0 => /usr/lib/libexpat.so.0 (0x00554000)
libapr-0.so.0 => /u...
mongodb 以管理员登录并创建 database - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...in)" 标识.
例如
MongoServer server = MongoServer.Create("mongodb://root:111@192.168.0.34:27017/?connect=direct;slaveOk=true");
MongoServer server = MongoServer.Create("mongodb://root(admin):111@192.168.0.34:27017/?connect=ReplicaSet;slaveOk=true");
是在以下找到的,用的关键字 "Mo...
修改centos字符集导致桌面进不去的一系列问题 - 更多技术 - 清泛网 - 专注C...
...集请参看 http://user.qzone.qq.com/58740020/blog/1407983208
修改
[root@centos ~]# vi /etc/sysconfig/i18n
发现在终端下ORALCE 可以正常显示汉字
但是centos 不能正常登陆桌面系统，必须手动选择 汉字（中国选项）
但是进入桌面还是UTF-8
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内网时间同步问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...sbin/hwclock -w
2. 设定计划任务
crontab -e
10 5 * * * root ntpdate 192.168.0.2 ;hwclock -w
这样每天5:10自动进行网络校时
注意事项：
1. 使用很多服务器可以大幅度改善 ntpdate 命令的可靠性与精度。尽管能使用单一服...