Last week, I was searching for tutorials on using Lagrange multipliers. I was most interested in the case where there are multiple constraints. I found some good youtube videos in the process. So, I spent some time looking at good Youtube channels where good math lessons are taught. To my delight , I found some good channels.
One thing I need to mention is that in the channels I mention here , the Math level is not very advanced – at the most up to the undergraduate level. If you want really advanced stuff check out MIT OCW or similar places. Also, since most of the efforts were voluntary , there was also quite a bit of overlap in the lessons. Most of them are around 10 minutes which is excellent as they allow me to listen to a lesson when I feel bored and in the process refresh my basic math 🙂
Some of my favorite channels (not in any order) are :
1. Math2b Prof’s channel
Has some interesting stuff on Partial fractions, calculus and some geometry ish topics.
2. Partick JMT’s channel
Has some nice and organized stuff about trigonometry and calculus.
3. MathTV’s channel
Has a series of videos of algebra, calculus and other stuff
4. Khan’s Academy
This is probably the most popular education Youtube channel. It contains basic tutorial videos on lot of subjects like physics , biology and math. It also has some nice videos on contemporary economic issues. Most of the videos are well packages using playlists that will help you listen in a organized fashion. You can also check Khan academy’s website .
1. Steven Strogatz’s NYTimes Math article series
Steven Strogatz writes a weekly article series on Math in NYTimes. He explains lot of interesting stuff in Math in a simple manner. You can check out the Strogatz’s Opinionator blog page for more details.
Most of the channels may not be very useful for grad students in their studies. But they can act as a refresher.
The easiest way to follow the channels is by Subscribing to it. In each of the web page , there is a subscribe button which allows you to be notified when new video are uploaded. Once you subscribe , you either visit your My Subscriptions page to get the videos uploaded per user. You can also add the subscription widget to your Youtube homepage.
But, there is still a small inconvenience. You have to visit youtube to find any updates. And like Wikipedia, we know surfing Youtube is a time sucker. Luckily, Youtube provides a RSS/Atom feed of your subscription page. If you use any RSS reader like Google Reader then you can click on the Feed icon at the My Subscriptions page and subscribe to the feed. You can refer to my old Google Reader tutorial if you want a tutorial on using it . So, if any new videos are uploaded then you can check them in your RSS reader and listen to them at your own pace.
Just to bring the topic to closure, I finally found a good tutorial on using Lagrange Multipliers with multiple constraints at An Introduction to Lagrange Multipliers .
Have fun with all the Math videos 🙂