Objective Questions

-------------------

.. A mininum of 8 questions here (along with answers)

1. How do you declare a sequence of numbers in python?

   Give example .

   Comma seperated numbers inside two square brackets.

   seq=[1.5,3.2,8.7]

2. Square the following sequence? 

   distance_values=[2.1,4.6,8.72,9.03].

   square(distance_values)

3. How do you plot the data as points using plot function?

   By passing an extra parameter '.'.

.. #[[Anoop: It can better if asked as, How do you plot the data as

   points using plot function?]]

4. Can you comment about the result of this plot command .

   plot(x, y,'o')

   It plots large points.

.. #[[Anoop: give an example and ask what it does, like plot(x, y,

   'o'), that makes the question simple]]

5. How do you plot error in Python?

   Using the function error bar.

6. How do I get large red colour dots on a plot?

   By passing the paramter 'ro'.

7. What are the parameters 'xerr' and 'yerr' in errorbar function for?

   xerr - List of error values of variable on x axis.

   yerr - List of error values of variable on y ayis.

8. How would you plot error bar with a line?

   The fmt parameter for a line will be '-'.

Larger Questions

----------------

.. A minimum of 2 questions here (along with answers)

1. Plot an errorbar for following experimental data.

   |  X    |  Y   | Xerr | Yerr  |

   | 154.9 | 8106 | 8.51 | 165.8 |

   | 154.3 | 8138 | 8.50 | 166.3 |

   | 148.7 | 8148 | 7.78 | 161.2 |

   | 149.6 | 8171 | 7.81 | 162.6 |

in red colour with large dots

2. List the parameters for errorbar and their function?