After a few hours of tinkering with a program, you realize that you have introduced a lot of problems. You want to go back to what the program was like before you began working on it. Which of these will make that possible?
scientific library
development life cycle
version control system
documentation
version control system
What is the purpose of a version control system?
The purpose of a version control system is to track and manage changes to files and code over time. It allows multiple people to collaborate on a project, keep track of different versions of the project, and revert to previous versions if needed. It provides a systematic way of handling code changes and helps maintain the integrity and stability of the software.
You are reviewing a Python program that includes this line of code: import numpy. Which of the following is this program most likely to contain?
The program is most likely to contain scientific or numerical computations or data manipulations. numpy is a popular Python library that provides efficient and convenient functionalities for working with large, multi-dimensional arrays and matrices, as well as a collection of mathematical functions to operate on these arrays. It is commonly used in fields such as data science, scientific research, and engineering.
What will this line of code do?
numpy.sum(item_prices)
This line of code will compute the sum of the values in the array or list "item_prices" using the sum() function provided by the numpy library. The sum() function takes an array-like object as input and returns the sum of all the values in that object. In this case, it will sum up all the elements in the "item_prices" array and return the total sum.
Which statement is the best description of this structure?]
[[0, 1, 2], [3, 4, 5], [6, 7, 8]] [ [[0, 1, 2], [3, 4, 5], [6, 7, 8]]]
(1 point) [ (1 point)]
Responses [ Responses]
It is one array consisting of numbers. [ It is one array consisting of numbers.]
It is one array consisting of numbers. [ It is one array consisting of numbers.]
It is an array that consists of three other arrays. [ It is an array that consists of three other arrays.]
It is an array that consists of three other arrays. [ It is an array that consists of three other arrays.]
It will not work in Python due to the double brackets. [ It will not work in Python due to the double brackets.]
It will not work in Python due to the double brackets. [ It will not work in Python due to the double brackets.]
It will not work in Python due to the missing comma. [ It will not work in Python due to the missing comma.]
It is an array that consists of three other arrays. [ It is an array that consists of three other arrays.]
Which statement about importing part of a library is correct?
(1 point)
Responses
There is no way to import just part of it.
There is no way to import just part of it.
There is no advantage to it.
There is no advantage to it.
It’s likely to lead to errors.
It’s likely to lead to errors.
It can be more efficient.