17 files changed, 171 insertions, 102 deletions

diff --git a/additional_ipython/script.rst b/additional_ipython/script.rst
index 581dbf1..bd01a0f 100644
--- a/additional_ipython/script.rst
+++ b/additional_ipython/script.rst
@@ -1,11 +1,6 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - 
-   C - 
-   D - 
-
 .. By the end of this tutorial you will be able to
 
 .. #. Retrieve your ipython history 
diff --git a/embellishing_a_plot/quickref.tex b/embellishing_a_plot/quickref.tex
index a0212b3..78459f2 100644
--- a/embellishing_a_plot/quickref.tex
+++ b/embellishing_a_plot/quickref.tex
@@ -1,11 +1,34 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+Plot with a specific color. Ex: RED :\\
+{\ex \lstinline|    plot(x, f(x), "r")|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Plot with a specific style. Ex: DASHED :\\
+{\ex \lstinline|    plot(x, f(x), "--")|}
+
+Plot with specific color and style. Ex: RED DASHED :\\
+{\ex \lstinline|    plot(x, f(x), "r--")|}
+
+Plot with a specific line thickness:\\
+{\ex \lstinline|    plot(x, f(x), linewidth=3)|}
+
+Adding title:\\
+{\ex \lstinline|    title("Plot of sin(x)")|}
+
+labelling the axes:\\
+{\ex \lstinline|    xlabel("x")|}
+{\ex \lstinline|    ylabel("f(x)")|}
+
+Adding annotations:\\
+{\ex \lstinline|    annotate("localmax", xy=(1, 2))|}
+
+Using LaTeX typesetting on any text:\\
+{\ex \lstinline|    title("Plot of $sin(x)$")|}
+
+Getting the axes limits:\\
+{\ex \lstinline|    xlim()|}
+{\ex \lstinline|    ylim()|}
+
+Setting the axes limits:\\
+{\ex \lstinline|    xlim(x_min, x_max)|}
+{\ex \lstinline|    ylim(y_min, y_max)|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
diff --git a/embellishing_a_plot/script.rst b/embellishing_a_plot/script.rst
index 8810157..e964389 100644
--- a/embellishing_a_plot/script.rst
+++ b/embellishing_a_plot/script.rst
@@ -1,11 +1,6 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - 
-   C - 
-   D - 
-
 .. By the end of this tutorial you will be able to 
 
 ..  * Modify the attributes of the plot -- color, line style, linewidth
diff --git a/input_output/quickref.tex b/input_output/quickref.tex
index a0212b3..43629ca 100644
--- a/input_output/quickref.tex
+++ b/input_output/quickref.tex
@@ -1,11 +1,15 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+Printing a variable:\\
+{\ex \lstinline|    print x|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Printing with out a new line:\\
+{\ex \lstinline|    print x, |}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Using modifiers while printing:\\
+{\ex \lstinline|    print "a is \%d b is \%f"\%(a, b)|}
+
+Taking input from user:\\
+{\ex \lstinline|    x = raw_input()|}
+
+Display a prompt while taking input:\\
+{\ex \lstinline|    x = raw_input("Type a number: ")|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
diff --git a/input_output/script.rst b/input_output/script.rst
index e525872..bcac6e9 100644
--- a/input_output/script.rst
+++ b/input_output/script.rst
@@ -1,17 +1,11 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - 
-   C - 
-   D - 
-
 .. #. How to print some value
 .. #. How to print using modifiers
 .. #. How to take input from user
 .. #. How to display a prompt to the user before taking the input
 
-
 .. Prerequisites
 .. -------------
 
diff --git a/lstsq/quickref.tex b/lstsq/quickref.tex
index a0212b3..e057739 100644
--- a/lstsq/quickref.tex
+++ b/lstsq/quickref.tex
@@ -1,11 +1,15 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+Creating a matrix with all ones:\\
+{\ex \lstinline|    o = ones_like(l)|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Creating the A matrix:\\
+{\ex \lstinline|    A = array(l, ones_like(l)).T|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Computing least square:\\
+{\ex \lstinline|    result = lstsq(A, tsq)|}
+
+Obtaining the m and c values:\\
+{\ex \lstinline|    m, c = result[0]|}
+
+Computing the least square fit line:\\
+{\ex \lstinline|    lst_line = m * l + c|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
diff --git a/lstsq/script.rst b/lstsq/script.rst
index 59f1809..a53524e 100644
--- a/lstsq/script.rst
+++ b/lstsq/script.rst
@@ -1,11 +1,6 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - 
-   C - 
-   D - 
-
 .. Plotting a least square fit line
 
 .. Prerequisites
@@ -13,6 +8,7 @@
 
 ..   1. Basic Plotting
 ..   2. Arrays
+..   3. Loading data from files 
      
 .. Author              : Nishanth Amuluru
    Internal Reviewer   : 
diff --git a/parsing_data/quickref.tex b/parsing_data/quickref.tex
index a0212b3..5adaa84 100644
--- a/parsing_data/quickref.tex
+++ b/parsing_data/quickref.tex
@@ -1,11 +1,15 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+Splitting a string on whitespace:\\
+{\ex \lstinline|    str_var.split()|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Splitting a string using a delimiter. Ex: ";" :\\
+{\ex \lstinline|    str_var.split(";")|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Stripping the whitespace around a string:\\
+{\ex \lstinline|    str_var.strip()|}
+
+Converting a string or float to int:\\
+{\ex \lstinline|    int(var_name)|}
+
+Converting a string or int into float:\\
+{\ex \lstinline|    float(var_name)|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
diff --git a/parsing_data/script.rst b/parsing_data/script.rst
index 5873132..2a3573c 100644
--- a/parsing_data/script.rst
+++ b/parsing_data/script.rst
@@ -1,10 +1,11 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - 
-   C - 
-   D - 
+.. By the end of this tutorial you will be able to
+
+..  * Split a string using a delimiter
+..  * remove the whitespace around the string
+..  * convert the variables from one type to other
 
 .. Prerequisites
 .. -------------
diff --git a/plotting_using_sage/quickref.tex b/plotting_using_sage/quickref.tex
index a0212b3..44513ac 100644
--- a/plotting_using_sage/quickref.tex
+++ b/plotting_using_sage/quickref.tex
@@ -1,11 +1,30 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+Plot simple 2D functions on a linear range of x:\\
+{\ex \lstinline|    plot(f(x), (x, 0, 2*pi)|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Plot 2D plots where x and y are functions of another variable:\\
+{\ex \lstinline|    parametric_plot((f_x, f_y), (x, 0, 2*pi), (y, 0, 2*pi))|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Generate a sequence of points with a given seperation:\\
+{\ex \lstinline|    points = srange(2.5, 5.5, 0.25)|}
+
+Plot a line joining a list of pairs of points:\\
+{\ex \lstinline|    line(list_pairs)|}
+
+Show the plots:\\
+{\ex \lstinline|    show(plot_name)|}
+
+Show multiple plots:\\
+{\ex \lstinline|    show(p1+p2+p3)|}
+
+Set x-axis limits:\\
+{\ex \lstinline|    show(p1+p2, xmim=0, xmax=2*pi)|}
+
+Set y-axis limits:\\
+{\ex \lstinline|    show(p1+p2, ymim=-1.2, ymax=1.2)|}
+
+Plot 3D functions:\\
+{\ex \lstinline|    plot3d(f(x, y), (x, 0, 2*pi), (y, -1, 1))|}
+
+Plot 3D functions where x, y, z are functions of another variable:\\
+{\ex \lstinline|    parametric_plot3d((f_x, f_y, f_z), (t, 0, 10))|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
diff --git a/plotting_using_sage/script.rst b/plotting_using_sage/script.rst
index bcef0dc..04dd06c 100644
--- a/plotting_using_sage/script.rst
+++ b/plotting_using_sage/script.rst
@@ -1,10 +1,10 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B -
-   C - 
-   D - 
+.. By the end of this tutorial you will be able to 
+
+..  * Use SAGE for 2D plotting
+..  * Use SAGE for 3D plotting
 
 .. Prerequisites
 .. -------------
diff --git a/sets/quickref.tex b/sets/quickref.tex
index a0212b3..4e34e59 100644
--- a/sets/quickref.tex
+++ b/sets/quickref.tex
@@ -1,11 +1,23 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+Creating a set:\\
+{\ex \lstinline|   p10 = set([2, 3, 5, 7]) |t}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Creating set from a tuple or list:\\
+{\ex \lstinline|   s = set(var_name)|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Operations on sets. Ex: UNION:\\
+{\ex \lstinline|   s1 \| s2 |}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
+Other operations available:\\
+
+\begin{lstlising}
+\item "\&" -- Intersection
+\item "-" -- Difference
+\item "\^" -- Symmetric Difference
+\item "<" -- Subset
+\end{lstlisting}
+
+Checking for containership:\\
+{\ex \lstinline|    x in p10|}
+
+Finding the no.of elements:\\
+{\ex \lstinline|    len(p10)|}
diff --git a/sets/script.rst b/sets/script.rst
index ffc2084..8f9c699 100644
--- a/sets/script.rst
+++ b/sets/script.rst
@@ -1,11 +1,13 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - Will learn what are tuples and why they are needed
-       Will learn the various methods of accessing elements in tuples
-   C - 
-   D - 
+.. By the end of this tutorial, you will be able to 
+
+.. * Create sets from lists
+.. * Perform union, intersection and symmetric difference operations
+.. * Check if a set is a subset of other
+.. * understand various similarities with lists like length and containership
+
 
 .. Prerequisites
 .. -------------
diff --git a/using_sage_to_teach/quickref.tex b/using_sage_to_teach/quickref.tex
index a0212b3..68e958a 100644
--- a/using_sage_to_teach/quickref.tex
+++ b/using_sage_to_teach/quickref.tex
@@ -1,11 +1,26 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+using @interact:\\
+{\ex \lstinline|    @interact
+                    def f(a=5,b=[1,2],c=(0..3))|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Default argument for a field input:\\
+{\ex \lstinline|    def f(a="hello")|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Default argument for slider:\\
+{\ex \lstinline|    def f(a=(1..8))|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
+Default argument for buttons:\\
+{\ex \lstinline|    def f(a=[1, 2, 3])|}
+
+Publish worksheets:\\
+{\ex \lstinline|    Use Publish option on top right corner|}
+
+Re-Publish worksheets:\\
+{\ex \lstinline|    Check the auto re-publish option while publishing or click
+on publish and click on the re-publish option on the page.|}
+
+Share the worksheets:\\
+{\ex \lstinline|    Click on the share button and enter the usernames|}
+
+Editing a published worksheet:\\
+{\ex \lstinline|    Open the worksheet and click on the edit button on top left
+corner|}
diff --git a/using_sage_to_teach/script.rst b/using_sage_to_teach/script.rst
index 0316a31..094f84f 100644
--- a/using_sage_to_teach/script.rst
+++ b/using_sage_to_teach/script.rst
@@ -1,10 +1,10 @@
 .. Objectives
 .. ----------
 
-.. A - Students and teachers from Science and engineering backgrounds
-   B - 
-   C - 
-   D - 
+.. By the end of this tutorial you will be able to
+
+..  * use ``@interact`` feature of SAGE
+..  * learn to share, publish and edit SAGE worksheets
 
 .. Prerequisites
 .. -------------
diff --git a/writing_python_scripts/quickref.tex b/writing_python_scripts/quickref.tex
index a0212b3..2b24fc9 100644
--- a/writing_python_scripts/quickref.tex
+++ b/writing_python_scripts/quickref.tex
@@ -1,11 +1,9 @@
-Creating a tuple:\\
-{\ex \lstinline|    t = (1, "hello", 2.5)|}
+See where python searches for modules:\\
+{\ex \lstinline|    sys.path|}
 
-Accessing elements of tuples:\\
-{\ex \lstinline|    t[index] Ex: t[2]|}
+Include our own path in PYTHONPATH:\\
+{\ex \lstinline|    sys.path.append(our_path)|}
 
-Accessing slices of tuples:\\
-{\ex \lstinline|    t[start:stop:step]|}
+Run certian code only if executed and not if imported:\\
+{\ex \lstinline|    if __name__=="__main__": #do something|}
 
-Swapping values:\\
-{\ex \lstinline|    a, b = b, a|}
diff --git a/writing_python_scripts/script.rst b/writing_python_scripts/script.rst
index d8268f4..07c91f1 100644
--- a/writing_python_scripts/script.rst
+++ b/writing_python_scripts/script.rst
@@ -1,8 +1,15 @@
 .. Objectives
 .. ----------
 
+.. By the end of this tutorial, you will be able to 
+
+..  * Understand what is importing
+..  * Write your own Python modules
+..  * Understand the ``__name__=="__main__"`` idiom
+
 .. Prerequisites
 .. -------------
+.. 1. Using Python modules
      
 .. Author              : Nishanth Amuluru
    Internal Reviewer   :