Draft Lecture on Second Look at the Kalman filter (#373)

* upload Tom's specification for kalman2

* add quantecon install

* update code

* update math tag for (1)

* fix a typo

* Tom's edits in the kalman-2 branch Oct 16

* update graphs

* update boundaries for plot

* Tom's edits of the kalman2 lecture in the branch, Oct 17

* update examples on how to generate exact lss

* update examples on drawing plots for both figures

* update covariance contour plot

* reduce number of contour plots to increase clarity

* Tom's edit of two lectures in the branch, Oct 18

* Tom's additional edits of kalman2 lecture, evening of Oct 18

* fix minor typos

* shorten the code to adhere to 80 letters when possible

* minor changes for pdf compat and tidy up

* fix align

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Co-authored-by: thomassargent30 <ts43@nyu.edu>
Co-authored-by: mmcky <mamckay@gmail.com>

Author: 3 people

lectures/_toc.yml

@@ -47,6 +47,7 @@ parts:
   - file: kesten_processes
   - file: wealth_dynamics
   - file: kalman
+  - file: kalman_2
   - file: short_path
 - caption: Search
   numbered: true