diff -r 2b88724a7ee0 -r 80e4016d747a embellishing_a_plot/questions.rst
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/embellishing_a_plot/questions.rst	Thu Oct 07 14:25:44 2010 +0530
@@ -0,0 +1,90 @@
+Objective Questions
+-------------------
+
+ 1. Draw a plot of cosine graph between -2pi to 2pi with line thickness 4
+
+    Answer::
+
+    x = linspace(-2*pi, 2*pi)
+    plot(x, cos(x), linewidth=4)
+
+ 2. Draw a plot of the polynomial x^2-5x+6 in the range 0 to 5 in blue dotted
+    line
+
+    Answer::
+
+    x = linspace(-2*pi, 2*pi)
+    plot(x, x**2 - 5*x + 6, 'r.')
+
+ 3. Which marker is used to get circles
+
+    a. '.'
+    #. '^'
+    #. 'o'
+    #. '--'
+
+ 4. What does the '^' marker produce
+
+    Answer: Triangle up marker
+
+ 5. How do you set the title as x^2-5x+6 in LaTex style formatting
+
+    Answer: title("$x^2-5x+6$")
+
+6. What happens when the following code is executed::
+
+    xlabel("First label")
+    xlabel("Second label")
+
+   Answer: The label of x-axis is set to "Second label"
+
+ 7. Read thorugh the documentation and find out is there a way to modify the
+    alignment of text in the command ``ylabel``
+
+   a. Yes
+   #. No
+
+   Answer: No
+
+ 8. How to add the annotation "Maxima" at the point (1, 2)
+
+   Answer: annotate("Maxima", xy=(1, 2))
+
+ 9. Is the command ``annotate("max", (1, 2))`` same as ``annotate("max",
+    xy=(1, 2)``
+
+    a. True
+    b. False
+
+    Answer: True
+
+ 10. When a new annotation is made at a point, what happens to the old one
+
+    a. It is replaced
+    b. It is overwritten
+    c. The new annotation is combined with old one
+
+    Answer: It is overwritten
+
+ 11. What happens when xlim is used without arguments
+
+    Answer: It gives the current limits of x-axis
+
+ 12. What happens when ``ylim(0, 5)`` is used
+
+    Answer: It sets the lower and upper limits of y-axis to 0 and 5
+
+ 13. Draw a cosine plot from 0 to 2*pi with green dots. annotate the origin as
+     "origin" and set x and y labels to "x" and cos(x) and x limits to 0 and
+     2pi and y limits to -1.2 and 1.2
+
+    Answer::
+
+      x = linspace(0, 2*pi)
+      plot(x, cos(x), 'g.')
+      annotate("origin", (0, 0))
+      xlabel("$x$")
+      ylabel("$cos(x)$")
+      xlim(0, 2*pi)
+      ylim(-1.2, 1.2)
+