using_plot_interactively/questions.rst
author Puneeth Chaganti <punchagan@fossee.in>
Wed, 01 Dec 2010 16:51:35 +0530
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Objective Questions
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.. A mininum of 8 questions here (along with answers)
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1. Create 100 equally spaced points between -pi/2 and pi/2?
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   Answer: linspace(-pi/2,pi/2,100)
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2. How do you clear a figure in ipython?
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   Answer: clf()
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3. How do find the length of a sequence?
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   Answer: len(sequence_name)
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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
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   Answer: x=linspace(0,pi,100)
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   	   plot(x,exp(x))
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5. List four formats in which you can save a plot in ipython?
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   Answer: png,eps,pdf,ps
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6. List the kind of buttons available in plotui to study the plot better ?
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   Zoom button to Zoom In to a region.
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   Pan button to move it around.
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7. What are the left and right arrow buttons for?
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   Answer: These buttons take you to the states that the plot has been. Much like a browser left and right arrow button.
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8. What is the home button for in the Plot UI?
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   Initial State of the plot.
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Larger Questions
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.. A minimum of 2 questions here (along with answers)
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1. Use '?' and explain the similarities and difference between linpace and logspace? 
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2. Describe one by one all the buttons in UI of plot and their meaning?