4. Exercise

• Modify the previous program so that it can input a value and run for n times instead of the value 10. Assign that value to a variable named n.

• You must call your variable n for your program to pass the test, otherwise it will fail.

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# File caos.py

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# A program that illustrates the Chaos Theory

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print("This program illustrates chaotic behavior.")

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x = eval(input("Enter a number between 0 and 1:"))

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# Modified code

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n = eval(input("Enter the number of times to run the program:"))

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for i in range(n):

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    x = 3.9 * x * (1 - x)

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    print("%2.3f" % x)

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​

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​

Activity: 4.1 ActiveCode (ac_l38_4_en)

4.1. Summary

• The description of a sequence of steps to solve a problem is called a computational algorithm.

• Algorithms are programs (software) that determine what the computer (hardware) will do.

• The process of creating software is called programming.

4.2. Remember

• Programming languages have a formal syntax.

• Computers only understand machine language.

• Python is a high-level interpreted language.

• The Python interpreter converts instructions command by command into machine language.

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