diff -r 88a01948450d -r d33698326409 using-sage/questions.rst
--- a/using-sage/questions.rst	Wed Nov 17 23:24:57 2010 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,99 +0,0 @@
-Objective
----------
-
-1. How do you find the limit of the function ``x/sin(x)`` as ``x`` tends to
-   ``0`` from the negative side.
-
-   Answer: lim(x/sin(x), x=0, dir="below")
-
-#. Find the third differential of the function ``exp(sin(x)*cos(x^2))``
- 
-   Answer: diff(exp(sin(x)*cos(x^2), x, 3)
-
-#. Solve the system of linear equations::
-
-     x-2y+3z = 7
-     2x+3y-z = 5
-     x+2y+4z = 9
-
-   Answer::
-
-     A = Matrix([[1, -2, 3], 
-                 [2, 3, -1], 
-                 [1, 2, 4]])
-
-     b = vector([7, 5, 9])
-
-     solve_right(A, b)
-
-#. How do you get the factorized form of ``x^4 - 4x^2 + x^3 + 2x + 7`` 
-
-   Answer::
-
-      factor( x^4 + x^3 - 4*x^2 + 2*x + 7 )
-
-#. list all the primes between 2009 and 2900
-
-   Answer: prime_range(2009, 2901)
-
-#. Which function is used to check primality
-
-   a. isPrime
-   #. isprime
-   #. is_prime
-   #. prime
-
-   Answer: is_prime
-
-#. How do you list all the combinations of ``[1, 2, 3, 4]``
-
-
-   Answer::
-
-     c1 = Combinations([1, 2, 3, 4])
-     c1.list()
-
-#. How do you list all the permutations of ``[1, 3, 2, 3]``
-
-    Answer::
-
-      p1 = Permutations([1, 3, 2, 3])
-      p2.list()
-
-
-Programming
------------
-
-1. Obtain the sum of primes between 1 million and 2 million. 
-
-   Answer::
-
-     prime_sum = 0
-     for i in range(1000001, 2000000, 2):
-         if is_prime(i):
-         prime_sum += i
-        
-     prime_sum
-
-   OR
-   ::
-
-     sum(prime_range(1000000, 2000000))
-
-2. ``graphs.WorldMap()`` gives the world map in the form of a
-   graph. ::
-
-       G = graphs.WorldMap()
-       G.vertices()
-
-  
-   Suppose, I wish to go from India to France by Road, find out the
-   least number of Visas that I'll have to obtain. 
-
-   Answer::
-
-      G.distance("India", "France")
-
-      
-
-