Alan Mandell: Most Important Exercise to Help Pinched Nerve and Neck Pain

Alan Mandell

• Radiculopathy (神経根障害)
• Radicular pain (神経根痛)

Pokemon GO: BIGGEST CROWD EVER!!! (Santa Monica Pier)

• Holly Conrad

Ichiro Suzuki & Hideki Irabu: イチローVS伊良部のハイレベルな攻防

Hideki Irabu

Masayoshi Son (孫正義) & Mariko Ooe (大江麻理子): ARM社を買収した孫正義氏が買収の目的、ソフトバンクの将来を語る

Mariko Ooe

Tony Padilla: Pi and Buffon's Matches: Buffon's needle (ビュフォンの針)

Buffon's Needle experiment

Edmund Copeland & Gregory Galperin: Pi and Bouncing Balls: Galperin’s Billiard Method of Computing Pi

Gregory Galperin

Edmund Copeland

N	Big Ball is	Collisions required to turn around
0	16 times bigger	3
1	1600 times bigger	31
2	160,000 times bigger	314
3	16,000,000 times bigger	3,141
4	1,600,000,000 times bigger	31,415
5	160,000,000,000 times bigger	314,159
6	16,000,000,000,000 times bigger	3,141,592

• M = 16 * 100^n * m
• Galperin’s billiard method of computing pi

Masayoshi Son (孫正義): Press Conference: ARM to be acquired by SoftBank

Masayoshi Son

• Earnings before interest and taxes (EBIT)
• Earnings before interest, taxes, depreciation, and amortization (EBITDA)
• Free cash flow
• Net debt zero
• ARM Holdings (ARMホールディングス)
• ARM architecture (ARMアーキテクチャ)
• United Kingdom withdrawal from the European Union (欧州連合からのイギリス脱退問題)

Hyperloop (ハイパーループ): CNNMoney: 700 mph in a tube: The Hyperloop experience

Rachel Crane

Marta Nowak

Craig Hodgetts

Dirk Ahlborn

• Craig Hodgetts (UCLA Professor)

Hyperloop (ハイパーループ): Hyperloop One First Public Test

CentOS: Quick Fixing the Locale Problem When Terminal.app Failed to Set Locale Environment Variables on Startup

Command:

$ locale

Result:

locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: LC_ALL??????????????????: ??????????????????????
LANG=ja_JP.utf8
LC_CTYPE=UTF-8
LC_NUMERIC="ja_JP.utf8"
LC_TIME="ja_JP.utf8"
LC_COLLATE="ja_JP.utf8"
LC_MONETARY="ja_JP.utf8"
LC_MESSAGES="ja_JP.utf8"
LC_PAPER="ja_JP.utf8"
LC_NAME="ja_JP.utf8"
LC_ADDRESS="ja_JP.utf8"
LC_TELEPHONE="ja_JP.utf8"
LC_MEASUREMENT="ja_JP.utf8"
LC_IDENTIFICATION="ja_JP.utf8"
LC_ALL=

Command:

$ LC_CTYPE=ja_JP.utf8

$ locale

Result:

LANG=ja_JP.utf8

LC_CTYPE=ja_JP.utf8

LC_NUMERIC="ja_JP.utf8"

LC_TIME="ja_JP.utf8"

LC_COLLATE="ja_JP.utf8"

LC_MONETARY="ja_JP.utf8"

LC_MESSAGES="ja_JP.utf8"

LC_PAPER="ja_JP.utf8"

LC_NAME="ja_JP.utf8"

LC_ADDRESS="ja_JP.utf8"

LC_TELEPHONE="ja_JP.utf8"

LC_MEASUREMENT="ja_JP.utf8"

LC_IDENTIFICATION="ja_JP.utf8"

LC_ALL=

Command:

$ date

Result:

2016年  5月 18日 水曜日 03:47:01 JST

CentOS: Setting System Locale

Command:

$ locale -a | grep ja

Result:

ja_JP
ja_JP.eucjp
ja_JP.ujis
ja_JP.utf8
japanese
japanese.euc


Command:

$ localectl set-locale LANG=ja_JP.utf8
$ localectl

Result:

System Locale: LANG=ja_JP.utf8

CentOS: Installing Sysstat

Command:

# yum install sysstat

Result:

Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: ftp.jaist.ac.jp
 * extras: ftp.jaist.ac.jp
 * updates: ftp.jaist.ac.jp
Resolving Dependencies
--> Running transaction check
---> Package sysstat.x86_64 0:10.1.5-7.el7 will be installed
--> Processing Dependency: libsensors.so.4()(64bit) for package: sysstat-10.1.5-7.el7.x86_64
--> Running transaction check
---> Package lm_sensors-libs.x86_64 0:3.3.4-11.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==============================================================================================================
 Package                        Arch                  Version                       Repository           Size
==============================================================================================================
Installing:
 sysstat                        x86_64                10.1.5-7.el7                  base                296 k
Installing for dependencies:
 lm_sensors-libs                x86_64                3.3.4-11.el7                  base                 40 k

Transaction Summary
==============================================================================================================
Install  1 Package (+1 Dependent package)

Total download size: 336 k
Installed size: 1.1 M
Is this ok [y/d/N]: y
Downloading packages:
(1/2): lm_sensors-libs-3.3.4-11.el7.x86_64.rpm                                         |  40 kB  00:00:01    
(2/2): sysstat-10.1.5-7.el7.x86_64.rpm                                                                                                       | 296 kB  00:00:06    
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                55 kB/s | 336 kB  00:00:06    
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : lm_sensors-libs-3.3.4-11.el7.x86_64                                                                                                              1/2
  Installing : sysstat-10.1.5-7.el7.x86_64                                                                                                                      2/2
  Verifying  : sysstat-10.1.5-7.el7.x86_64                                                                                                                      1/2
  Verifying  : lm_sensors-libs-3.3.4-11.el7.x86_64                                                                                                              2/2

Installed:
  sysstat.x86_64 0:10.1.5-7.el7                                                                                                                                    

Dependency Installed:
  lm_sensors-libs.x86_64 0:3.3.4-11.el7                                                                                                                            

Complete!

CentOS: Installing OpenSSH Server

Command:

# yum -y install openssh-server

Result:

Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.jaist.ac.jp
* extras: ftp.jaist.ac.jp
* updates: ftp.jaist.ac.jp
Package openssh-server-6.6.1p1-25.el7_2.x86_64 already installed and latest version
Nothing to do

CentOS: Print Release Informations

Command:

$ cat /etc/centos-release

Result:

CentOS Linux release 7.2.1511 (Core)


Command:

$ cat /etc/os-release

Result:

NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"


Command:

$ cat /etc/redhat-release

Result:

CentOS Linux release 7.2.1511 (Core)


Command:

$ cat /etc/system-release

Result:

CentOS Linux release 7.2.1511 (Core)