Just for Fun

How to serve in tennis?

2010-05-16T19:09:00.000-07:00

Toss

Image there are three balls and hit all the three balls across. This is the same idea to return a deep forehand/backhand stroke.

How to watch TV with sopcast

2007-08-25T11:19:00.001-07:00

6/ Play a channel

go to the channel page on sopcast: http://www.sopcast.org/channel/

copy the link of the channel you want to watch, for example, espn:
sop://broker.sopcast.org:3919/official/espn

in a terminal, type:
Code:

/home/yourname/sopcast/sp-sc sop:sop://broker.sopcast.org:3919/official/espn 8900 8800

Wait for around 15 seconds, open mplayer, go to play location and play: http://localhost:8800

install qsopcast on ubuntu

2007-08-24T18:59:00.000-07:00

成功在ubuntu上实现网络电视的经验……

首先，
sudo apt-get install alien gcc make （如果已经安装alien，您可以取消此句）

然后就可以到以下网址下载：
http://www.sopcast.com/download/

sp-sc.tgz,libstdcpp5.tgz

http://apt.magiclinux.org/magic/2.1/unstable/RPMS.os/qsopcast-0.3.1-1mgc.i686.rpm

再将sp-sc.tgz中的文件解压到/usr/local/bin/下，再用
sudo alien qsopcast-0.3.1-1mgc.i686.rpm
sudo dpkg -i qsopcast_0.3.1-2_i386.deb
其次是安装kaffeine or mplayer,
sudo apt-get install kaffeine
这样就可以在“应用程序”－＞中的“Internet"看到qsopcast了。

kde configure problem

2007-06-02T20:36:00.000-07:00

When installing KDE applications, its best to do

./configure --prefix=`kde-config --prefix`

This makes sure that everything is installed in the right KDE directories.

Card games

2006-12-25T10:38:00.000-08:00

Every card game is a journey.

Enable Java for firefox

2006-12-08T21:41:00.000-08:00

After installing Sun's Java and the steps (see below) to enable Java for firefox, I still couldn't make it work until I did the following steps:

$cd
$cd .mozilla/plugins
$ln -s /usr/java//jre1.5.0_09/plugin/i386/ns7/libjavaplugin_oji.
so
********************
Enable and Configure
Mozilla 1.4 and later

1. Go to the plugins sub-directory under the Mozilla installation directory
cd /plugins
2. In the current directory, create a symbolic link to the JRE ns7/libjavaplugin_oji.so file Type:
ln -s /plugin/i386/ns7/libjavaplugin_oji.so

Example:
* If Mozilla is installed in this directory:
/usr/lib/mozilla-1.4/
* and if the JRE is installed at this directory:
/usr/java/jre1.5.0
* Then type at the terminal to go to the browser plug-in directory:
cd /usr/lib/mozilla-1.4/plugins
* Enter the following command to create a symbolic link to the Java Plug-in for the Mozilla browser.
ln -s /usr/java/jre1.5.0/plugin/i386/ns7
/libjavaplugin_oji.so .

Likelihood ratio test is more powerful when ...?

2006-11-13T09:46:00.000-08:00

the underlying distribution is more close to normal distribution?

Shutdown Linux and ACPI

2006-11-10T11:02:00.000-08:00

The Advanced Control and Power Interface, ACPI, allows IPCop to monitor key hardware metrics such as power and processor temprature. If necessary, IPCop, will power itself off to protect your processor and motherboard. ACPI requires an ACPI enabled chip set on your motherboard, ACPI aware BIOS, and the use of the “IPCop ( ACPI enabled )” kernel. If you don't know if your motherboard is ACPI enabled, check your motherboard or computer's documentation. If you can't find out, try booting one of the ACPI enabled kernels and check to see if the apci driver came up properly by logging in as root and typing:

# dmesg|grep ^ACPI:

Verify the ACPI reported no errors. If an error is reported, reboot and select another kernel configuation.

Change /etc/grub.conf and add

append="acpi=force"

Flush buffer in Fortran

2006-10-27T14:45:00.000-07:00

I have a long-running job that writes messages to a file to tell how it
is doing. The job runs in the background under UNIX (f77 under SUN
Sparc running Solaris, and also on a DEC alpha under ULTRIX).

Trouble is I can't read the messages till they are ancient history.

Is there a way to flush the output buffer each time a message is
written? Most likely this is operating system specific, but
any help would be appreciated.

Answer 1:

Many FORTRAN systems have a flush routine:

call flush(6)

You can insert this line just after the print statement that you want
to see the output from immediately after it is executed. On some
machines the unit number is different. For example, on Cray computers
you would do something like

print'(a,/,(1p10e13.5))',' DEBUG ARRAY:',array
cal flush(101)

Check the FORTRAN documentation or online man page for FLUSH

Answer 2:

OPEN the file once with STATUS='UNKNOWN' and CLOSE it immediately.
Then OPEN it everytime before you write the message with STATUS='OLD'
and CLOSE it after the message. The CLOSE should flush the output
buffer. I don't think that this is covered by the standard, but it's
hard to imagine a runtime than would not flush the buffer after a
CLOSE. It worked for me on various UN*X systems.