Merge remote-tracking branch 'alanspring15/master' into spring15

Author: stevengj

18.06-PS1.ipynb

@@ -1,4 +1,32 @@
-# MIT Course 18.06, Spring 2017
+# MIT Course 18.06, Spring 2015
 
-This is a repository for Prof. Steven G. Johnson's course [18.06: Linear Algebra](http://web.mit.edu/18.06) at MIT in 2017.
-(See also the [Stellar 18.06 page](https://stellar.mit.edu/S/course/18/sp17/18.06/index.html).)
+This is a repository for Prof. Alan Edelman's course [18.06: Linear Algebra](http://web.mit.edu/18.06) at MIT in spring 2015.
+
+Students in 18.06 have the option of using <img src="https://camo.githubusercontent.com/e1ae5c7f6fe275a50134d5889a68f0acdd09ada8/687474703a2f2f6a756c69616c616e672e6f72672f696d616765732f6c6f676f5f68697265732e706e67" width="33" align=top> through the  [juliabox.org](https://juliabox.org) website.
+
+For those who don't read instructions: <br>
+`download("https://raw.githubusercontent.com/alanedelman/18.06_Spring_2015/master/18.06-PS9.ipynb", "18.06-PS9.ipynb" )`
+
+
+
+## Instructions for Problem Set 9 (and so on)
+
+0. The Julia option (only!)  may be completed by midnight Friday night for full credit (12:01AM Saturday to be precise)
+1. Login to [juliabox.org](https://juliabox.org) with your google account. <br> <img  src="http://www.exegetic.biz/blog/wp-content/uploads/2015/08/julia-juliabox.jpg" width="300" >
+2. Go back into an existing (or a new notebook) and copy and paste the next line:<br> `download("https://raw.githubusercontent.com/alanedelman/18.06_Spring_2015/master/18.06-PS9.ipynb", "18.06-PS9.ipynb" )`
+<br> in a new cell  and execute
+4. Go back to the notebooks tab (or hit the IJ icon), refresh, and enjoy pset 9
+3. If you filled in your gmail and mit address once this semester, it is not necessary to do again.
+4. If you are trying julia for the first time, open up a new notebook (any kernel is fine) and follow the instruction on line 3
+
+
+### Some Notes:
+
+1. If you do both MITx and Julia problem sets, we will take a simple maximum of the two total scores each week.
+2. Scores for MITx or Julia may be posted at different times (probably 24 or 48 hours apart)
+3. The MITx and Julia problems are nearly identical, though there are some minor changes due to format and language.  We hope the Julia set is more fun.
+4. Ask Julia questions through Piazza and very likely Professor Edelman will answer them quickly
+6. Don't worry if something technically goes wrong.  We can always do things manually, just send  a friendly note through piazza or to edelman at mit.edu.
+7. If you need to re-download the notebook to get some fixes you can run `download("https://raw.githubusercontent.com/alanedelman/18.06_Spring_2015/master/18.06-PS9.ipynb", "18.06-PS9_a.ipynb" )` (notice the changed name as the second argument to `download`. Now you can open the new notebook and you *only need to answer the problems you haven't already or had trouble with*. Your score from the previous notebook will be saved.
+8. Notice that the files on <a href="https://github.com/alanedelman/18.06_Spring_2015"> the github page </a> are timestamped.  If you are having trouble with a problem for technical reasons, check for updates.
+9. If you see a dead kernel, please follow the instructions on https://piazza.com/class/iebnrdsl7th4h7?cid=130