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Prove \( \sum _{k=1}^{n} k = \frac{1}{2} n (n + 1) \) with Mathematical Induction

Sunday April 3rd, 2016 Kenji

Now, prove the following equation with Mathematical Induction.

$$ sum _{k=1}^{n} k = frac{1}{2} n (n + 1) $$ Continue reading Prove \( \sum _{k=1}^{n} k = \frac{1}{2} n (n + 1) \) with Mathematical Induction →
Mathematical Induction
Linux

Gradle: Automatic Deployment

Wednesday March 30th, 2016 Kenji

私が Gradle を使って Spring Boot の自動デプロイを実現した方法です。 自動というのは リポジトリのフックなどではなく、 自動テストの後のデプロイでもなく、 コマンドでデプロイする方法を指しています。

Continue reading Gradle: Automatic Deployment →
Auto DeploymentgradlesshTomcatwar file
Code

Characters that Raspberry Pi LCD can Show

Saturday March 26th, 2016 Kenji

At the article Add LCD Panel to Raspberry Pi, I installed Adafruit Raspberry Pi LCD Kit to Raspberry Pi. Here, I wrote about the character which the LCD panel can show.

Adafruit Raspberry Pi LCD Kit
Continue reading Characters that Raspberry Pi LCD can Show →
LCDRaspberry Pi文字電子工作
Linux

Create Wireless Internet Radio with Raspberry Pi (2 of 2)

Tuesday March 22nd, 2016 Kenji

This article continues from Create Wireless Radio with Raspberry Pi (1 of 2). Here, I explain how to build and configure it.

Continue reading Create Wireless Internet Radio with Raspberry Pi (2 of 2) →
LCDRaspberry PiInternet RadioWireless LAN電子工作
Linux

Create Wireless Internet Radio with Raspberry Pi (1 of 2)

Tuesday March 22nd, 2016 Kenji

I created wireless internet radio player with Raspberry Pi, which has LCD panel and key pad.

Continue reading Create Wireless Internet Radio with Raspberry Pi (1 of 2) →
LCDRaspberry PiInternet RadioWireless LAN電子工作

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  • Hyakunin Isshu and Ogura Hyakunin Isshu
  • HMAC implementation in Python

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