I was registering for access to the Sencha forums (www.sencha.com) today when I saw the following on the registration form:
That's pretty advanced math for a CAPTCHA, isn't it?
So, is the math problem this:
6 – (2 x 3)
Or is it this:
(6 – 2 ) x 3
Having a degree in Physics and more than 30 years of experience as a professional software developer, I was certain I knew what I was doing. However, I'd be lying if I told you I got this right on the first try.
All of my years of experience with math told me that the actual problem I was trying to solve was this: 6 – (2 x 3). Everything I knew from high school and college told me that without parenthesis clarifying the problem, the more complicated math happened first followed by less complicated. Even Wikipedia confirmed this here: http://en.wikipedia.org/wiki/Order_of_operations.
The answer's Zero, right?
Nope, that's not the case. So, not only is the registration forum asking me to do more complicated math than simple addition, subtraction or multiplication – but it's also scoffing at normal precedence of operators and essentially forcing me to give the deliberately wrong answer which, according to them, is 12.
First Arduino Project
Sat, Mar 15th 2014 8:11p John Wargo My dad was a tool geek, I’m a gadget geek. All my life I’ve been drawn toward technology. When I was a kid, I was constantly biking to Radio Shack to pick up one of their assemble-it-yourself electronics kits. I build radios, sound generators and anything I could get my hands on. I wanted to be an Electrical Engineer, but my grades weren’t good enough, so I went into Physics and Computers – go figure.
Anyway, my son’s a gadget geek as well. He’s 10, so all he knows is smartphones an [read] Keywords: application
Password Pain Redux
Tue, Feb 11th 2014 7:11a John Wargo In my previous post, I wrote about one of my biggest software pet peeves – registration forms that have specific password requirements that are not communicated to the user until AFTER a password has been entered. This morning I found one that was even worse than the Google Coder one I showed earlier.
I was playing around with the Intel XDK development tools for web applications. After I got it installed, it prompted me to create an account. I filled in all of the fields and went looking for [read] Keywords: applications
Tue, Feb 4th 2014 7:12a John Wargo I recently learned about a cool web development server for the Raspberry Pi. I want to teach my son about computer programming and this seemed like an interesting way to do it. The server is called Google Coder and it’s delivered as a Raspbian image for the Pi. Pretty cool; I’m hoping to learn more about it and write a bit about my findings here.
As I set it up and started playing with it, I was hit by one of my pet peeves. First you fire up the server then connect to it via your desktop br [read] Keywords: desktop
BlackBerry 10 Charging Foibles
Mon, Feb 3rd 2014 9:11p John Wargo If you’ve been reading around here you should know that I love BlackBerry, but BlackBerry 10 is really starting to annoy me. For all of BlackBerry’s focus on quality and design, I’m find BlackBerry 10 to be really, really hard to use on a day to day basis. So many of the things I loved about BlackBerry just aren’t in BlackBerry 10 and I’m finding the UX to be…klunky.
I went out of town this weekend to hang out with some friends. I have a BlackBerry Z30 device, and it has a HUGE batt [read] Keywords: blackberry
Sun, Feb 2nd 2014 4:10p John Wargo I spent the weekend in Buffalo snowmobiling with some very old friends. As I flew on several Southwest airlines flights I was reminded of a little piece of airplane etiquette that most people don’t think/know of.
Imagine you get on the plane and sit towards the front of the plane, but get on later in the process and the front overhead compartments are full. You move back to an open overhead compartment further and store your stuff then head up to your seat for the ride to wherever you are goi [read] Keywords:
Mon, Jan 20th 2014 6:13p John Wargo Linus Torvalds created a distributed revision control and source code management system called git: http://en.wikipedia.org/wiki/Git_(software). Git is pronounced like ‘get’, substituting an ‘i’ for the ‘e’ in get. The open source world has embraced it in a big way and it’s how you install most anything related to Apache Cordova.
Git is also an English slang word for ‘a silly, incompetent, stupid, annoying, senile elderly or childish person’: http://en.wikipedia.org/wiki/Git_( [read] Keywords: application
Contact Form Fixed
Mon, Jan 20th 2014 12:11p John Wargo Apparently the site's contact form has been broken for some time now. Perhaps that's why I haven't heard from many people lately. Anyway, fixed it this afternoon, so it's working again. Sorry for that. [read] Keywords:
Windows Phone 8 Upgrade Foibles
Tue, Dec 24th 2013 1:15p John Wargo I’ve been doing some testing of some Cordova apps on a Windows Phone 8 device AT&T was nice enough to give me earlier this year. I would really like to learn more about developing apps for the device, but there’s no time and I work primarily with Cordova anyway.
Anyway, the device prompted me to do an update the other day and I (stupidly) let it go ahead and do what it wanted to do. When it completed, I plugged it back into my Windows 8 desktop and suddenly the device couldn’t be seen [read] Keywords: desktop
Sencha Holiday Card 2013
Thu, Dec 19th 2013 4:20p John Wargo I just received a holiday card (via email of course) from Sencha. Check out the image below - how cool is that? Very Geeky.
I had a chance to do some development with Sencha this year and, once I figured out what I was doing, I really enjoyed it. I liked the ability to define a local store and let the Sencha Proxy manage getting the data back to my server. I owe all of you a big article showing how to build a server process that processes the Sencha Proxy requests, hopefully I'll get to that [read] Keywords: development