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In the previous post, we discussed the performance space of the minimum function which was implemented via a simple ternary operator and with the help of bit magic. Now we continue to talk about performance and bit hacks. In particular, we will divide a positive number by three: uint Div3Simple ( uint n ) => n / 3 ; uint Div3BitHacks ( uint n ) => ( uint )(( n * ( ulong ) 0xAAAAAAAB ) >> ..
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In the previous post, we discussed the performance space of the minimum function which was implemented via a simple ternary operator and with the help of bit magic. Now we continue to talk about performance and bit hacks. In particular, we will divide a positive number by three: uint Div3Simple ( uint n ) => n / 3 ; uint Div3BitHacks ( uint n ) => ( uint )(( n * ( ulong ) 0xAAAAAAAB ) >> ..
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Everything You Need to Know About Regular Expressions In JavaScript - Part Two: Grouping And The RegEx API
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lucasfcosta.com
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9 years ago
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eng
Hello everyone! This is my second blog post about regular expressions in JavaScript, if you didn't read the first one, make sure you do because we're gonna need that knowledge for this post. If yo...
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Everything You Need to Know About Regular Expressions In JavaScript - Part Two: Grouping And The RegEx API
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lucasfcosta.com
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9 years ago
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eng
Hello everyone! This is my second blog post about regular expressions in JavaScript, if you didn't read the first one, make sure you do because we're gonna need that knowledge for this post. If yo...
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Last two months were quite amazing for me as a Wingifighter; I was on a traveling spree over Italy and London. I got an opportunity to…
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Listen to this wonderful interview on KQED (NPR)’s "Forum" with Dr. Tim Wu On Advertising, Fake News and ‘Attention Harvesting’
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Few days back, we open-sourced our internal Skype bot to the world. Its called Heybot!, but we call it Ramukaka at Wingify :) Whether its…
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One popular reoccurring post on blogs, regardless of niche, is an income report. For instance, MyBlogLift has a monthly (well, two) income and traffic report. Cash Flow Diaries has a long list of different income reports.
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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MH-Z19 CO2 sensor reader, logger and visualiser Reads data from UART(serial)-connected MH-Z19 (or MH-Z14) sensor using python 3. If you dare to install nodejs you can visualise the logged data (using html and plotly.js library). Repository: sammcj/CO2-Logger Usage Note this post is from 2016, in 2021 I replaced my custom Co2 loggers with an Aranet4 . While very expensive, is and excellent off-the-shelf solution, with many featur..
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Jesse Houwing is a Lead Consultant at Xpirit. Recently he published a really helpful Visual Studio Team Services (VSTS) task making it easier to get Snyk incorporated into your VSTS workflow. We interviewed him to learn more about how he did it.
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My favorite books out of the 61 books (~24,000 pages) that I read in 2016: Sci-Fi, Fantasy, and Speculative Fiction Culture series — I read the entire ten book series over the course of 2016. The Culture series is set in the distant future where enlightened AIs run society and humans, freed from a life of labor, have to deal with the rest of the galaxy. What is life like when material want is eradicated? What about encounters with less ....
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My favorite books out of the 61 books (~24,000 pages) that I read in 2016: Sci-Fi, Fantasy, and Speculative Fiction Culture series — I read the entire ten book series over the course of 2016. The Culture series is set in the distant future where enlightened AIs run society and humans, freed from a life of labor, have to deal with the rest of the galaxy. What is life like when material want is eradicated? What about encounters with less ....
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I’ve recently felt the urge to start designing boats again, as I have had some ideas I wanted to explore, specifically for boats of the Mini 650 class . The software I use has basic hydrostatics capabilities, but only for an upright boat. It cannot calculate the GZ curve, or get the righting moment at specific heel angles, which is a crucial data for the kind of craft I wanted to design. Existing solutions are extremely powerful and extr....
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I’ve recently felt the urge to start designing boats again, as I have had some ideas I wanted to explore, specifically for boats of the Mini 650 class . The software I use has basic hydrostatics capabilities, but only for an upright boat. It cannot calculate the GZ curve, or get the righting moment at specific heel angles, which is a crucial data for the kind of craft I wanted to design. Existing solutions are extremely powerful and extr....
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Performance is tricky. Especially, if you are working with very fast operations. In today benchmarking exercise, we will try to measure performance of two simple methods which calculate minimum of two numbers. Sounds easy? Ok, let’s do it, here are our guinea pigs for today: int MinTernary ( int x , int y ) => x < y ? x : y ; int MinBitHacks ( int x , int y ) => x & (( x - y ..
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Performance is tricky. Especially, if you are working with very fast operations. In today benchmarking exercise, we will try to measure performance of two simple methods which calculate minimum of two numbers. Sounds easy? Ok, let’s do it, here are our guinea pigs for today: int MinTernary ( int x , int y ) => x < y ? x : y ; int MinBitHacks ( int x , int y ) => x & (( x - y ..
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Imagining Patient Experiences with Face Recognition, IoT and OCR
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www.thoughtworks.com
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9 years ago
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eng
What cascade detectors, sensors, and scanners can bring to Bahmni, an open source hospital information system for low-resource environments. Visiting a hospital is rarely a pleasant experience. Aside from the obvious trauma of needing to go to a hospital, there are other inconveniences such as long queues and having to carry physical documents and paper slips from one department to the other.
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How Shifter Introduced Serverless Hosting to WordPress Using AWS, DynamoDB & the Serverless Framework
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www.serverless.com
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9 years ago
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eng
Learn how Shifter transforms WordPress blogs and websites into static sites to make them faster, more secure and scalable in this guest post.
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Happy holidays, Merry Christmas, happy new year to all. All of us here at Codename One hope you have a lovely vacation if you are taking one. Since half of our readership is from countries that celebrate these holidays it seems like a good time to take a short blogging vacation as well. We’re still working here and will make releases/offer support as usual but we’ll update you on the changes we had in our 2017 posts. We’ll be back t..
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One of the fallouts from the new encrypted storage API we added last week is the fact that it encrypts things like preferences making them unusable if you expected them to work before/after encryption was applied. To workaround this we added a new API to the Preferences class: public static void setPreferencesLocation(String storageFileName) public static String getPreferencesLocation() These API’s allow us to determine the storage f..
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Announcing Snyk CLI for Ruby, and more ways to fix Ruby vulnerabilities
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snyk.io
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9 years ago
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eng
Since we launched Ruby last month, we’ve been working away on improvements. Today we’re excited to let you know about our extended support for Ruby.
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Repository: @knadh/simplemysql GitHub release page: v1.25.0 What’s Changed Added lastQuery by @Zetaphor in https://github.com/knadh/simplemysql/pull/11 fix parameter name for get methods by @ptrcarta in https://github.com/knadh/simplemysql/pull/14 Adding examples and cleaning up README by @Zetaphor in https://github.com/knadh/simplemysql/pull/16 Added SSL Connectivity Support by @subhashdasyam in https://github..
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Some times people will join the Kubernetes community and get confused on what the “k8s” is all about.
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Implementing Non-Renewable Subscriptions with In-App Purchase
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www.codenameone.com
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9 years ago
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eng
__ This is the second post in a three-part series on In-App purchase. Please check out Part I: Introduction to In-App Purchase and Part 3: Auto-renewing Subscriptions in iOS and Android . In my last post we looked at one-off in-app purchases. In this post we’ll look at subscriptions. As we discussed before, there are two types of subscriptions: Non-renewable Auto-renewable Non-renewable subscriptions are really the sa..
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One of the most painful aspects in any mobile app is input, besides the difficulty of viewing the details on a tiny cramped screen the input via the virtual keyboard is nowhere near the input comfort of a full fledged computer or even a tablet. A great app adapts to the screen size and uses the available space more effectively, we tried to do this in the kitchen sink demo where user input appears like this in portrait:
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It is conventional wisdom that habits are the fundamentals of successful life. Having consistent habits of making your bed, exercising, eating healthy, meditating, and not spending more than you make are what some popular self help bloggers and authors are preaching. Habits work. Once I have a positive habit formed, it is a great force in my improving my days. Recently I’ve been developing the habit of exercising. I started by doing a l....
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