In JavaScript, there is no iterator over arrays or objects. One has to do a for construct such as the one below. Notice how one has to declare all the variables with var to prevent global namespace pollution. And there is a lot of verbiage just to iterate over these objects. A better way can [...]
Tagged javascript, jQuerySee a primitive working parser at http://mythiclogos.com/parsing/version01 Does arithmetic, does not handle ill-formed errors (missing “)” ) gracefully (does nothing actually–if you check in firebug, just gives warning). So I have spent the past week or so creating the foundations for a parser. And reacquainting myself with Javascript and jQuery. I love both the language [...]
A new world is upon us. Already the web seems nearly magical in its many different uses, but within a year, this might look like the dark ages. As HTML5 takes hold, everything seems like it will be simpler. And Flash free! I have been reading HTML5 web programming on SafariOnline on my iPad. It [...]
Tagged javascriptI have finished my video lectures. They consist of ten weeks of videos with 2-4 hours of videos each week, probably 30 hours in total. It took me 2 months to accomplish that and I still have the encoding and uploading to do. But at least the recording is done. It is exhausting. An hour [...]
Okay this is a short summary of lessons learned in my ffmpeg journey to encoding and compressing my files. I use a 27in iMac (called ScarMac due to its beautiful left-side scar that came with it) and record videos using the built in camera and Screenflow. The default export to h264 gave a compression that [...]
This is written as a response to: Quick Impressions of Bohmian Mechanics —-Addressed to the author of that blog. I applaud you for taking the time to read about Bohmian Mechanics. Just as a word of warning, Shelly Goldstein was my PhD advisor and I consider myself to be very lucky to have worked with [...]
So last night, I ended the spring semester teaching. Two of my four students remarked as they were leaving, “This was a great semester” which is nice to hear. The last student to leave was the one on my side of the video camera. So we sat and talked for awhile. He loved the guesstimation [...]
Just some observations on bad user interface issues in Sakai. I am numbering it out of curiosity; there is no reason a user (reader) should see this numbering. Everything is about lots of pages and clicks. I designed the discussion part of the course to have a forum every week. This required creating 12 different [...]
Tagged Sakai, Teaching, User InterfaceRetirement was supposed to be easy. But it turns out that I am drawn to work. I think specifically I need to accomplish some math stuff. Right now, I am working on an online math course, one that covers algebra through calculus and statistics. Actually, at this very moment I am typing up this entry [...]