By Timothy A. Budd
Exploring Python takes an energetic studying technique which engages the coed as an equivalent associate within the strategy of studying the thrill, academic, and robust programming language. This method instills conduct that scholars will hold with them all through their programming profession and is helping them keep and use the knowledge they've got learned.
Tim Budd is without doubt one of the best-known authors in computing device technology and has a name for generating writing texts alongside the vanguard of the self-discipline. Exploring Python offers an available and trustworthy creation into programming with the Python language.
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Try to find an input that forces the loop to execute only once. Find an input that forces the program to execute more than once. indd 35 1/6/09 12:09:49 PM 36 Part 1 Basic Features of Python ⦁ If an upper bound has been set on the number of iterations of the loop, try to find values that barely meet the upper bound, meet the upper bound, and exceed the upper bound. py", line 8, in ? print 'average is', sum / count ZeroDivisionError: float division Break, Continue, and Pass Statements*1 It is not uncommon to want to end a loop in the middle of execution.
Assume the variable named n holds a positive integer value. How do you determine the last digit of n? ) 15. You have probably discovered that the % operator performs the remainder operation when used with two positive integer arguments. But what does it do when one or both arguments are negative? >>> 2 >>> -1 >>> 1 >>> -2 11 % 3 11 % -3 -11 % 3 -11 % -3 Try to come up with an explanation of this behavior. To do so, make a chart of the values from –15 to 15, and for each compute the result when used with the mod operator and the value 3.
The first line contains one star, the second two stars, and so on until the last line, which should have n stars. Can you write this using only a single loop? Hint: Remember what the expression '+'*5 does. Enter a size: 5 + ++ +++ ++++ +++++ 19. Write a program that reads two integer values n and m from the user and then produces a box that is n wide and m deep, such as the following: Enter a width: 5 Enter a height: 4 @@@@@ @ @ @ @ @@@@@ 20. What does the range loop do if it is given negative numbers?