Week 6 ENCMP 100 Flashcards
1
Q
What does .* do?
A
It is an element by element multiplication
2
Q
What is a scalar?
A
It is a single value
3
Q
What is a vector
A
It is a row of number or column of numbers
4
Q
What is a matrix
A
It is a numerical 2D Matrix
5
Q
What is an array?
A
It is a category of general types.
https://youtu.be/hjommfAYXWc
Time at 4min
6
Q
What is the fix integer?
A
It rounds the element of x to the nearest integers towards zero.
7
Q
What is a matrix multiplication
A
It is a row by column cumulative multiplication .
8
Q
What is array multiplication
A
It is .* function where you fulfilled element by element and you will get the same output dimension as the input dimension.
9
Q
What does the colon operator do?
A
Colon operator: iterates through values in the form first:step:last
e.g. 5:3:14 returns vector [5 8 11 14]
