Matrix Operations and Functions

Matrix Operations and Functions

Assessment

Interactive Video

Computers

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

This video tutorial covers the process of adding two matrices in C programming. It begins with an introduction to matrix addition, emphasizing the need for matrices to have the same dimensions. The tutorial then explains how to read matrices, perform the addition, and print the result. A dry run of the program is conducted to demonstrate the logic, followed by a practical implementation. The video concludes with an assignment to subtract matrices, preparing viewers for future lessons on matrix multiplication.

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a necessary condition for two matrices to be added together?

They must have the same number of columns.

They must be square matrices.

They must have the same dimensions.

They must have the same number of rows.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example provided, what are the dimensions of the matrices being added?

3x3

2x2

3x2

2x3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which function is used to read matrix elements from user input in C?

printf

scanf

fgets

getchar

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are elements accessed for addition in the matrix addition process?

By using a recursive function

By row and column indices

By using pointers

By using a single loop

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of using '/t' in the printf statement when printing matrices?

To print a tab character

To separate matrix elements

To add a tab space

To start a new line

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During the dry run, what is the initial value of the variable 'i'?

2

3

1

0

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in the practical implementation of the matrix addition program?

Writing the main function

Declaring the matrices

Including header files

Reading user input

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the output of adding two matrices with elements [1, 1, 1] and [1, 1, 1]?

[3, 3, 3]

[1, 1, 1]

[0, 0, 0]

[2, 2, 2]

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the assignment given at the end of the video?

Transpose a matrix

Divide two matrices

Subtract two matrices

Multiply two matrices