Week 3: Vector Practice

What is the output when the following line is run:

var = class('a')

• char

• double

• logical

• cell

What is the output when the following line is run:

var = class(7)

• char

• double

• logical

• cell

What is the output when the following line is run:

var = class(false)

• char

• double

• logical

• cell

What is the output when the following line is run:

var = class('7')

• char

• double

• logical

• cell

What is the output when the following line is run:

var = floor(4.678)

• 4.67

• 4

• 5

• 4.7

What is the output when the following line is run:

var = ceil(2.003)

• 2

• 2.00

• 2.01

• 3

True or False: A vector must contain data of all the same type.

• true

• false

What is the output when the following line is run:

vec = 1:4:16

• vec = [1 4 8 12]

• vec = [1 5 9 13]

• vec = [1 4 9 13]

• vec = [4 8 12 16]

What is the output when the following line is run:

vec = linspace(1,8,3)

• vec = [1, 4, 7]

• vec = [1, 4, 7, 8]

• Error

• vec = [1, 4.5, 8]

a = vecA(2:2:end)

ans = sum(a)

• ans = 59

• ans = 3710

• ans = 20

• ans = 65