Assessment: APIs

Section 8.3 Assessment: APIs

Subgoals for using libraries:.

Import module or function (if needed)
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1. With alias (optional)
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Determine whether parameters are appropriate for function
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1. Number of parameters passed must match function documentation
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2. Type of parameters passes must match function documentation
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Determine what the function will return (i.e., data type), print, and/or change state of arguments and where it will be stored (nowhere, somewhere)
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Evaluate expression as necessary
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Exercises Exercises

1.

Q1: Write a program that generates a random number 1 to 1000 and prints that value. Then it evaluates the square root of that number and prints that value.

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import random
 import math

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number = random.randint(1, 1000)
 print(number)

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sqrt = math.sqrt(number)
 print(sqrt)

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2.

Q2: What is the output of the following code?

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print(int(math.sqrt(4)))

2
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2.0
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4
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There is no output due to a runtime error.
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3.

Q3: Enter the output of the following program or enter “invalid” if the statement would result in an error.

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import math
print(int(math.sqrt(4)))

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4.

Q4: Write the code necessary to import the random library and alias it as r.

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5.

Q5: Which of the following is the name of the function in the math library that returns the absolute value of a number?

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abs
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absolute
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fabs
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There is no function in the math library that returns the absolute value of a number.
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You have attempted 1 of 6 activities on this page.

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