Chapter 2, Problem 2.5P

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 2, Problem 2.5P

Expert Solution & Answer

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

In a batch of 2000 bulbs, 5% are defective. If 10 bulbs are selected at random, what is the probability that at least 1 is defective?

A class of 50 students has scores with a mean of 70 and a standard deviation of 8. Assuming normal distribution, how many students are expected to score above 78?

Do not answer without proper knowledge! A researcher wants to test whether the mean height of a plant species is 25 cm. A sample of 16 plants has a mean of 23.5 cm and a standard deviation of 3 cm. Perform a hypothesis test at the 5% significance level.

Answer 2

Question

Chapter 2, Problem 2.5P

Expert Solution & Answer

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 2, Problem 2.5P

Expert Solution & Answer

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 2, Problem 2.5P

Expert Solution & Answer

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Expert Solution & Answer

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.

Answer 6

Expert Solution & Answer

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.

Answer 7

Expert Solution & Answer

Answer 8

Expert Solution & Answer

Answer 9

To determine

To find:

The value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Answer 10

Answer to Problem 2.5P

Solution:

The instruction for the sum of the series 1+12+13+14+15+... is

“sum(1./n)”.

Answer 11

Explanation of Solution

The given matrices are,

A=[1433]

And,

B=[12−10]

Substitute [1433] for A and [12−10] for B in the expression “A.*B”.

A.*B=[1433].*[12−10]=[1×14×23×−13×0]=[18−30]

Substitute [1433] for A and [12−10] for B in the expression “A*B”.

A*B=[1433]*[12−10]=[(1×1)+(4×−1)(1×2)+(4×0)(3×1)+(3×−1)(3×2)+(3×0)]=[−3206]

Similarly substitute [1433] for A and [12−10] for B in the expression “B*A”.

B*A=[12−10]*[1433]=[(1×1)+(2×3)(1×4)+(2×3)(−1×1)+(0×3)(−1×4)+(0×3)]=[710−1−4]

Now, verifying the expression output by using MATLAB command.

MATLAB Code:

clc

clear all

close all

A = [1 4;3 3]

% Define the command to get the matrix “A”.

B = [1 2;-1 0]

% Define the command to get the matrix “B”.

A.*B

% Define the command to get the output of the expression “A.*B”.

A*B

% Define the command to get the output of the expression “A*B”.

B*A

% Define the command to get the output of the expression “B*A”.

Save the MATLAB script with name, chapter2_54793_2_5P.m in the current folder. Execute the script by typing the script name at the command window to find the value of the expressions A.*B, A*B and B*A by hand and then verify the results in MATLAB.

Result:

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 1

MATLAB: A Practical Introduction to Programming and Problem Solving, Chapter 2, Problem 2.5P , additional homework tip 2

Therefore, the value of the expressions A.*B, A*B, and B*A is [18−30], [−3206], and [710−1−4] respectively.