diff -r 88a01948450d -r d33698326409 getting-started-with-arrays/questions.rst
--- a/getting-started-with-arrays/questions.rst	Wed Nov 17 23:24:57 2010 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,132 +0,0 @@
-Objective Questions
--------------------
-
-.. A mininum of 8 questions here (along with answers)
-
-1. An array in Python is the same as a Python list
-
-   a. True
-   #. False
-
-Answer: False
-
-2. ``x = array([1, 2, 3], [5, 6, 7])`` is a valid statement
-
-   a. True
-   #. False
-
-Answer: False
-
-3. What will be the output of the following code,
-   ::
-
-      x = array([[1, 2, 3], ['a', 2, 'c']])
-      print x[0][0] + x[0][1] + x[0][2] 
-
-   a. 6
-   #. 123
-   #. a2c
-   #. Error as array takes only homogeneous elements
-
-Answer: 123
-      
-4. What will be the output of the following code,
-   ::
-
-	x = [[1, 2, 3], [4.1, 4.2, 4.3], ['6','7',8]]
-	y = array(x)
-	print y[-1][-2] + y[-1][-1] + y[-2][0] + y[0][-2]
-
-   a. 21.1
-   #. 12.5
-   #. 784.12
-   #. Error as array takes only homogeneous elements
-
-   .. 4.2 4.3 2 2
-
-Answer: 784.12
-
-5. What is the output of the following code,
-   ::
-
-      x = array([[1, 2, 3], ['a', 2, 'c']])
-      identity(x.shape)
-
-   a. Will create an identity matrix of shape (2, 3).
-   #. ``identity()`` function takes an integer as argument and a tuple
-      is passed.
-   #. Will return, array([[1,0,1],[0,1,0]])
-   #. Will return, array([[0,1,0],[0,1,0]])
-
-Answer: ``identity()`` function takes an integer as argument and a
-      	tuple is passed.
-
-6. ``ones_like()`` function?
-   
-   (A) Returns an array of ones with the same shape and type as a
-       given array.
-   (B) Return a new array of given shape and type, filled with ones.
-
-   Read the statements and answer,
-
-   a. Only statement A is correct.
-   #. Only statement B is correct.
-   #. Both statement A and B are correct.
-   #. Both statement A and B are incorrect.
-
-Answer: Only statement A is correct.
-
-7. ``zeros_like()`` function?
-
-   (A) Return a new array of given shape and type, filled with zeros.
-   (B) Returns an array of zeros with the same shape and type as a
-       given array.
-
-
-   Read the statements and answer,
-
-   a. Only statement A is correct.
-   #. Only statement B is correct.
-   #. Both statement A and B are correct.
-   #. Both statement A and B are incorrect.
-
-Answer: Only statement B is correct.
-
-8. What will be output of the following code snippet.
-   ::
-
-      x = linspace(1,10,10).reshape(5,2)
-      print (x[-3]+x[-4]).sum()
-
-   a. 10.0 
-   #. 18.0
-   #. 14.0
-   #. 16.44
-   #. Error
-
-Answer: 18
-
-Larger Questions
-----------------
-
-.. A minimum of 2 questions here (along with answers)
-
-1. Write a python script to create a 15x15 array of equally spaced 225
-   elements from 1 to 1000, add 5 to each of the diagonal elements and
-   find the sum of all odd rows of the array. Say for example the
-   array,
-   ::
-
-       x = array([[1, 2, 3],
-		  [4, 5, 6],
-		  [7, 8, 9]])
-
-   will give answer 40 ((1+5) + 2 + 3 + 7 + 8 + (9+5)).
-
-2. For any given array([a1, a2, a3, .. , an]) the Vandermonde matrix
-    will be [[1, a1, a1**2, .. , a1**(n-1)], [1, a2, a2**2, .. ,
-    a2**(n-1)], .. , [1, an, an**2, .. ,an**(n-1)]]. Write a python
-    script to generate the Vandermonde matrix and find the determinant
-    of the matrix for [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-    16, 17, 18, 19, 20].  [Hint: to find the determinant use the
-    function ``det()`` from ``linalg`` module.]