Minimizing scalar functions (minimize_scalar) in SciPy - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the function for minimizing scalar functions.

SciPy

from scipy.optimize import [1]

Drag options to blanks, or click blank then click option'

Aminimize_scalar

Bminimize_vector

Cminimize_matrix

Dminimize_function

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to import a non-existent function like minimize_vector.

Confusing minimize_scalar with minimize_function.

The minimize_scalar function from scipy.optimize is used to find the minimum of a scalar function.

2fill in blank

medium

Complete the code to define a simple quadratic function to minimize.

SciPy

def f(x):
    return (x - [1]) ** 2

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A3

B0

C5

D-2

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 0 or negative numbers which change the minimum location.

Using a number not matching the intended minimum.

This function returns the square of (x - 3). The minimum is at x = 3.

3fill in blank

hard

Fix the error in the code to minimize the function f using minimize_scalar.

SciPy

result = [1](f)
print(result.x)

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Aminimize_vector

Bminimize_matrix

Cminimize_scalar

Dminimize_function

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-existent function like minimize_vector.

Misspelling the function name.

The correct function to minimize a scalar function is minimize_scalar.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps numbers to their squares for numbers greater than 2.

SciPy

squares = {x: x[1]2 for x in range(1, 6) if x [2] 2}

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A**

B>

C<

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using multiplication instead of exponentiation for squaring.

Using the wrong comparison operator like '<' instead of '>'.

The operator ** is used for exponentiation (power). The condition x > 2 filters numbers greater than 2.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their lengths for words longer than 3 characters.

SciPy

result = {{ { [1] } : [2] for word in words if len(word) [3] 3}}

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Aword.upper()

Blen(word)

C>

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using the word itself as the key instead of uppercase.

Using '<' instead of '>' in the condition.

The key is the uppercase word using word.upper(). The value is the length of the word using len(word). The condition len(word) > 3 filters words longer than 3 characters.