Matrix Basics
What is a data structure that represents a grid of elements arranged in rows and columns?
A Matrix
What type of loop structure is required to visit every element of a matrix?
Nested loops
When passing a matrix to a function in C, which dimension must always be specified?
The column dimension
What happens if you access an index that does not exist?
A runtime error
What are matrices commonly used for?
Graphics, games, data prosessing and images
How is a matrix implemented in C programming?
As a two-dimensional array
What condition must two matrices satisfy in order to be added together?
They must have identical dimensions
How do you access an element of a matrix?
Using two indices: row and column
What do we call the unpredictable values found in an uninitialized matrix?
Garbage values
What real-world tool is an example of matrix-based data organization?
Spreadsheets or data tables
How many total elements are stored in int m[3][4]?
12 elements
What is the name of the storage method where all elements of the first row are stored in memory before the second row?
Row-major order
What declaration creates a matrix with 2 rows and 3 columns in C?
int m[2][3];
What logical mistake happens when you swap i and j in nested loops?
Confusing rows and columns
In which field are matrices fundamental for image processing and pattern recognition?
Computer vision
At what number do matrix indices to start in C?
0
How is matrix addition performed?
Element-by-element
What value is assigned to missing elements in a partially initialized matrix?
0
What problem occurs if you forget to specify the column size in a function prototype?
A compiler error
What type of mathematical systems are commonly solved using matrices?
Linear systems.
How do you access the bottom-right element of a matrix with R rows and C columns?
matrix[R-1][C-1]
What pointer arithmetic formula is used to access an element in row-major order?
*(matrix + i*Cols + j)
In matrix traversal with nested loops, which loop usually controls the rows?
The outer loop
What is the maximum valid index in a dimension of size N?
N-1
What type of transformations in graphics programming rely heavily on matrices?
Geometric transformations