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lec7_review_practice

# lec7_review_practice - Review arrays and loops Practice...

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Unformatted text preview: Review arrays and loops Practice Exercises Ask your questions! HW#2 due today Finish Chap. 4 reading Start reading Chap. 5.1 (skip 5.2). Chap. 6 has helpful sections on reading/writing files, urllib, and neat things you can do with strings. From here on out, we’ll be skipping around in the book. Class Notes Generate x and y arrays of length 50 where y= (x-2)**2*sin(x) from x=[0,10] Write data to a file (‘mydata.txt’) in columns Read data back in and plot with line joined green squares. Find the maximum the y data and print the (x,y) values where the maximum occurs on the plot. Helpful array methods: y.argmax() produces the index where the maximum value in y occurs. Similar for y.argmin(). Follow up for loops A ‘looping’ variable is created and referenced in the for loop. Does not exist anywhere else. looping variable changes with each iteration of the loop Nested loops: for loop inside another for loop for iterating 2 collections of data. iterating 2 collections of data....
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lec7_review_practice - Review arrays and loops Practice...

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