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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/using-plot-interactively/questions.rst	Tue Nov 09 10:54:53 2010 +0530
@@ -0,0 +1,51 @@
+Objective Questions
+-------------------
+
+.. A mininum of 8 questions here (along with answers)
+
+1. Create 100 equally spaced points between -pi/2 and pi/2?
+
+   Answer: linspace(-pi/2,pi/2,100)
+    
+2. How do you clear a figure in ipython?
+
+   Answer: clf()
+
+3. How do find the length of a sequence?
+
+   Answer: len(sequence_name)
+
+4. Create a plot of x and e^x where x is 100 equally spaced points between 0,pi. Hint: e^x -> exp(x) for ipython
+
+   Answer: x=linspace(0,pi,100)
+   	   plot(x,exp(x))
+
+5. List four formats in which you can save a plot in ipython?
+   
+   Answer: png,eps,pdf,ps
+
+6. List the kind of buttons available in plotui to study the plot better ?
+
+   Zoom button to Zoom In to a region.
+   Pan button to move it around.
+
+7. What are the left and right arrow buttons for?
+
+   Answer: These buttons take you to the states that the plot has been. Much like a browser left and right arrow button.
+  
+
+
+8. What is the home button for in the Plot UI?
+
+   Initial State of the plot.
+
+
+
+
+Larger Questions
+----------------
+
+.. A minimum of 2 questions here (along with answers)
+
+1. Use '?' and explain the similarities and difference between linpace and logspace? 
+2. Describe one by one all the buttons in UI of plot and their meaning?

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/using-plot-interactively/quickref.tex	Tue Nov 09 10:54:53 2010 +0530
@@ -0,0 +1,14 @@
+Creating a linear array:\\
+{\ex \lstinline|    x = linspace(0, 2*pi, 50)|}
+
+Plotting two variables:\\
+{\ex \lstinline|    plot(x, sin(x))|}
+
+Saving Plot\\
+{\includegraphics[width=60mm]{save.png}}
+
+Zooming into a part of the plot\\
+{\includegraphics[width=60mm]{zoom.png}}
+
+Move the plot\\
+{\includegraphics[width=60mm]{move.png}}

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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/using-plot-interactively/script.rst	Tue Nov 09 10:54:53 2010 +0530
@@ -0,0 +1,212 @@
+.. Objectives
+.. ----------
+
+.. By the end of this tutorial you will --
+
+.. 1. Create simple plots of mathematical functions
+.. #. Use the Figure window to study plots better
+
+
+
+.. Prerequisites
+.. -------------
+
+.. Installation of required tools
+.. Ipython
+     
+.. Author              : Amit Sethi
+   Internal Reviewer   : 
+   External Reviewer   :
+   Checklist OK?       : <put date stamp here, if OK> [2010-10-05]
+
+Script
+-------
+
+
+Hello and welcome to the tutorial on creating simple plots using
+Python.This tutorial is presented by the Fossee group.  
+{{{ Show the Title Slide }}} 
+
+I hope you have IPython running on your computer.
+
+In this tutorial we will look at plot command and also how to study
+the plot using the UI.
+
+{{{ Show Outline Slide }}}
+
+Lets start ipython on your shell, type :: 
+
+      $ipython -pylab
+
+
+Pylab is a python library which provides plotting functionality.It
+also provides many other important mathematical and scientific
+functions. After running IPython -pylab in your shell if at the top of
+the result of this command, you see something like ::
+ 
+
+   `ERROR: matplotlib could NOT be imported!  Starting normal
+      IPython.`
+
+
+{{{ Slide with Error written on it }}}
+
+
+
+
+Then you have to install matplotlib and run this command again.
+
+Now type in your ipython shell ::
+
+             In[]: linpace?
+
+
+
+as the documentation says, it returns `num` evenly spaced samples,
+calculated over the interval start and stop.  To illustrate this, lets
+do it form 1 to 100 and try 100 points.  ::
+
+           In[]: linspace(1,100,100)
+
+As you can see a sequence of numbers from 1 to 100 appears.
+
+Now lets try 200 points between 0 and 1 you do this by typing ::
+
+
+            In[]: linspace(0,1,200)
+
+0 for start , 1 for stop and 200 for no of points.  In linspace 
+the start and stop points can be integers, decimals , or
+constants. Let's try and get 100 points between -pi to pi. Type ::
+           
+            In[]: p = linspace(-pi,pi,100)
+
+
+'pi' here is constant defined by pylab. Save this to the variable, p
+.
+
+If you now ::
+     
+	   In[]: len(p)
+
+You will get the no. of points. len function gives the no of elements
+of a sequence.
+
+
+Let's try and plot a cosine curve between -pi and pi using these
+points.  Simply type :: 
+
+
+       	  In[]: plot(p,cos(points))
+
+Here cos(points) gets the cosine value at every corresponding point to
+p.
+
+
+We can also save cos(points) to variable cosine and plot it using
+plot.::
+
+           In[]: cosine=cos(points) 
+
+	   In[]: plot(p,cosine)
+
+ 
+
+Now do ::
+       	 
+	   In[]: clf()
+
+this will clear the plot.
+
+This is done because any other plot we try to make shall come on the
+same drawing area. As we do not wish to clutter the area with
+overlaid plots , we just clear it with clf().  Now lets try a sine
+plot. ::
+
+
+    	 In []: plot(p,sin(p))
+
+
+
+ 
+The Window on which the plot appears can be used to study it better.
+
+{{{ Show the slide with all the buttons on it }}}
+
+First of all moving the mouse around gives us the point where mouse
+points at.  
+
+Also we have some buttons the right most among them is
+for saving the file. 
+
+Just click on it specifying the name of the file.  We will save the plot 
+by the name sin_curve in pdf format.
+
+
+
+{{{ Action corelating with the words }}}
+
+As you can see I can specify format of file from the dropdown.
+
+Formats like png ,eps ,pdf, ps are available.  
+
+Left to the save button is the slider button to specify the margins.  
+
+{{{ Action corelating with the words  }}}
+
+Left to this is zoom button to zoom into the plot. Just specify the 
+region to zoom into.  
+The button left to it can be used to move the axes of the plot.  
+
+{{{ Action corelating with the words }}}
+ 
+The next two buttons with a left and right arrow icons change the state of the 
+plot and take it to the previous state it was in. It more or less acts like a
+back and forward button in the browser.  
+
+{{{ Action corelating with the words }}}
+
+The last one is 'home' referring to the initial plot.
+
+{{{ Action corelating with the words}}}
+
+
+
+{{{ Summary Slide }}}
+
+
+In this tutorial we have looked at 
+
+1. Starting Ipython with pylab 
+
+2. Using linspace function to create `num` equaly spaced points in a region.
+
+3. Finding length of sequnces using  len.
+ 
+4. Plotting mathematical functions using plot.
+
+4. Clearing drawing area using clf 
+ 
+5. Using the UI of plot for studying it better . Using functionalities like save , zoom and moving the plots on x and y axis 
+
+
+ 
+
+
+{{{ Show the "sponsored by FOSSEE" slide }}}
+
+ 
+
+This tutorial was created as a part of FOSSEE project, NME ICT, MHRD India
+
+ 
+
+ Hope you have enjoyed and found it useful.
+
+ Thankyou
+
+ 
+
+Author              : Amit Sethi
+Internal Reviewer   :
+Internal Reviewer 2 : 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/using-plot-interactively/slides.tex	Tue Nov 09 10:54:53 2010 +0530
@@ -0,0 +1,71 @@
+% Created 2010-10-20 Wed 21:57
+\documentclass[presentation]{beamer}
+\usetheme{Warsaw}\useoutertheme{infolines}\usecolortheme{default}\setbeamercovered{transparent}
+\usepackage[latin1]{inputenc}
+\usepackage[T1]{fontenc}
+\usepackage{graphicx}
+\usepackage{longtable}
+\usepackage{float}
+\usepackage{wrapfig}
+\usepackage{soul}
+\usepackage{amssymb}
+\usepackage{hyperref}
+
+
+\title{Plotting Data }
+\author{FOSSEE}
+\date{2010-09-14 Tue}
+
+\begin{document}
+
+\maketitle
+
+\begin{frame}
+\frametitle{Tutorial Plan}
+\label{sec-1}
+\begin{itemize}
+
+\item Creating a simple plot\\
+\label{sec-1.1}%
+\item Use the buttons on window to study the plot\\
+\label{sec-1.2}%
+\end{itemize} % ends low level
+\end{frame}
+\begin{frame}
+\frametitle{Error if Ipython not installed}
+\label{sec-2}
+\begin{itemize}
+
+\item `ERROR: matplotlib could NOT be imported!  Starting normal IPython.`\\
+\label{sec-2.1}%
+\end{itemize} % ends low level
+\end{frame}
+\begin{frame}
+\frametitle{Plot UI}
+\label{sec-3}
+\begin{frame}
+ \begin{center}
+    \includegraphics[height=1.0in,width=4.2in]{buttons.png}
+  \end{center}
+\end{frame}
+
+\frametitle{Summary}
+\label{sec-4}
+\begin{itemize}
+
+\item Start Ipython with pylab\\
+\label{sec-4.1}%
+\item Using linspace\\
+\label{sec-4.2}%
+\item Finding length of sequnces using  len.\\
+\label{sec-4.3}%
+\item Plotting mathematical functions using plot.\\
+\label{sec-4.4}%
+\item Clearing drawing area using clf\\
+\label{sec-4.5}%
+\item Using the UI of plot\\
+\label{sec-4.6}%
+\end{itemize} % ends low level
+\end{frame}
+
+\end{document}

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