DIY-ROBOTS.COM

rndz.org

z'Log

http://rndz.org/page/2

Filed under: 未分类. 隐式转换，在执行的时候 JS 会转换变量为对应类型 位计算，数学计算. NaN/Infinity，这是两个顽固的 数字 typeof = number ，分别表示非数字和无限大的数。 Null，当成零值用的对象 typeof = object。 Infinity 被 parseInt 转换成 NaN，剩下的方法不改变它的值. Null/false/true 不能被 parseInt/parseFloat 转换，返回 NaN。 数学计算/Number 和逻辑计算类似，但不舍去小数 除空字符串外的不合法表达式返回 NaN。 ParseInt 也是只保留整数部分 但是对不合法的表达式，取字符串前面合法的整数 十进制、十六进制，不包括科学记数法 部分转换，没有则返回 NaN。 ParseFloat 和 parseInt 类似，不同的是能识别并保留小数部分，并且不支持十六进制数。 Filed under: 未分类. 添加 Bezier 算法，但只计算 Bezier 曲线一个方向上的坐标，如果需要 Bezier 曲线，需要两个实例，分别计算两个方向。 控制器的不同状态/this&...

ming-shian.blogspot.com

Ming's Blogger: 一些常用的Arduino語法筆記

http://ming-shian.blogspot.com/2013/09/arduino.html

看了Arduino的範例程式也好一陣子，但最近因為單純一行一行下來的command flow不夠用。 1 官方： http:/ arduino.cc/en/Reference/HomePage. 2 中文語法手冊： http:/ www.game7777.net/doku.php? 一般會先做(1) Pin腳的宣告，(2) void setup ()，(3) void loop (). 然後跟資料定義有關的：int, unsigned int, log, const, #define. 跟loop結構有關的：if.else架構，while迴圈，for迴圈. 0 65,535 (2 16) - 1). 2,147,483,648. 2,147,483,647. 它是一個變數限定詞，用於修改變數的性質，使其變為唯讀狀態。 如果存在分號，編譯器會拋出語義不明的錯誤，甚至關閉程式。 Define ledPin 3; /. Define ledPin = 3 /. 65288;條件判斷語句）和 =. If (someVariable 50);. If (x = 10). 8220;= ”. If (x = 10).

hellophp.cn

Robots | Boosting Internet

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Distribute computing , AI ,Machine Learning. Fixed-gear bikes confuse Google’s self-driving cars. The cyclist recounted the encounter on an online bike forum:. A Google self-driving Lexus has been in my neighborhood for the last couple of weeks doing some road testing. Near the end of my ride today, we both stopped at an intersection with 4-way stop signs. The car got to the stop line a fraction of a second before I did, so it had the ROW. I did a track-stand and waited for it to continue on through.

hellophp.cn

Notes | Boosting Internet

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Distribute computing , AI ,Machine Learning. Tensor Processing Unit board. TPU is an example of how fast we turn research into practice from first tested silicon, the team had them up and running applications at speed in our data centers within 22 days. TPUs already power many applications at Google, including RankBrain. Used to improve the relevancy of search results and Street View. Enabling it to “think” much faster and look farther ahead between moves. And Cloud Machine Learning. From Thursday 13 Aug...

hellophp.cn

Rapid Autonomous Complex-Environment Competing Ackerman-steering Robot based on Jetson TK1 | Boosting Internet

http://www.hellophp.cn/archives/711

Distribute computing , AI ,Machine Learning. Rapid Autonomous Complex-Environment Competing Ackerman-steering Robot based on Jetson TK1. We has a little bit detail information about MIT RACECAR. The Jetson TK1’s pulse width modulation (PWM) output signals drive. The motor electronic speed controller (ESC) and steering servomotor on the Traxxas, bypassing the RC Receiver. They used the Grinch kernel. They used the Robot Operating System (ROS) framework. The Point Grey camera is USB 3.0. Your email address...

hellophp.cn

MQTT (MQTT Telemetry Transport)协议介绍 | Boosting Internet

http://www.hellophp.cn/archives/700

Distribute computing , AI ,Machine Learning. MQTT (MQTT Telemetry Transport)协议介绍. MQTT协议,是应用于物联网(IOT Internet of Things) 的一种连接协议 . 为了优化应用场景,这个协议被设计成一种轻量级的基于PUB/SUB模式的传输层,从而以较小的代码量和带宽消耗. 例如将传感器数据通过卫星链路连接到大洋彼岸的康复中心. MQTT在功率消耗,数据报文大小等领域很有优势,因此在家庭自动化和微型设备,手机应用上都有广泛应用. 协议本身,请参考 http:/ mqtt.org/. This entry was posted in IOT. Application Architecturer Machine Learing Dev Manager Anti Spam Manager of Sina Mail. View all posts by Peng Zhang →. Time is the final solution for China’s air pollution. Xls php excel 解析.

hellophp.cn

PHP | Boosting Internet

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Distribute computing , AI ,Machine Learning. PHP Agile and sharp web tools. PHP AES with mcrypt and decrypt with Java. Some important tips for building php webservice or php web api and requested by Java Client. PHP user mcrypt library for Cipher implements. like this. $td = mcrypt module open(MCRYPT RIJNDAEL 128,”,MCRYPT MODE CBC,”); While many samples code use MCRYPT RIJNDAEL 256 . It’s robust and very safe but not supported by Java Cipher Code. IV must be shared by PHP and Java Code. Xls php excel 解析.

hellophp.cn

Peng Zhang | Boosting Internet

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Distribute computing , AI ,Machine Learning. Author Archives: Peng Zhang. Application Architecturer Machine Learing Dev Manager Anti Spam Manager of Sina Mail. Tensor Processing Unit board. TPU is an example of how fast we turn research into practice from first tested silicon, the team had them up and running applications at speed in our data centers within 22 days. TPUs already power many applications at Google, including RankBrain. Used to improve the relevancy of search results and Street View. Before...

hellophp.cn

System | Boosting Internet

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Distribute computing , AI ,Machine Learning. Spark 2.0 Technical Preview: Easier, Faster, and Smarter. Before we dive in, we are happy to announce the availability of the Apache Spark 2.0 technical preview in Databricks Community Edition today. This preview package is built using the upstream branch-2.0. Using the preview package is as simple as selecting the 2.0 (branch preview) version when launching a cluster:. Now, let’s take a look at the new developments. Easier: SQL and Streamlined APIs. On the pr...

hellophp.cn

Mfrbee Increases Transparency with New Credible Open Data Model | Boosting Internet

http://www.hellophp.cn/archives/723

Distribute computing , AI ,Machine Learning. Mfrbee Increases Transparency with New Credible Open Data Model. Take for example one of Mfrbee’s Chinese suppliers who launched their Magic scarf. Product online. Three months later, the supplier received an inquiry from a customer located in Africa and was curious why someone from a country in such a warm climate would need a Magic Scarf. The Chinese supplier named Pingyang CVC Lace Trim Factory wanted to verify whether the customer Jumakist Ventures...The s...