Chapter 2, Problem 1P

To determine

To create:

A variable $\text{a}$ that is a row vector with the following elements: $9,1,3^2,7/4,0,2.25\times 8.5,0.8$ and $\sin \left(\text{π}/\text{8}\right)$.

Answer to Problem 1P

Solution:

The created row vector variable $\text{a}$ is $\text{a}=[9,1,9,1.75,0,19.125,0.8,0.3827]$.

Explanation of Solution

The given row vector contains following elements: $9,1,3^2,7/4,0,2.25\times 8.5,0.8$ and $\sin \left(\text{π}/\text{8}\right)$.

Simplify the given row vector.

$\begin{array}{c}9=9\\ 1=1\\ 3^2=9\\ \frac{7}{4}=1.75\end{array}$

And,

$\begin{array}{c}0=0\\ 2.25\times 8.5=19.125\\ 0.8=0.8\\ \sin \left(\text{π}/\text{8}\right)=0.3827\end{array}$

Hence, the created row vector variable $\text{a}$ is $\text{a}=[9,1,9,1.75,0,19.125,0.8,0.3827]$.

Write the MATLAB script that create a variable $\text{a}$ that is a row vector with the following elements: $9,1,3^2,7/4,0,2.25\times 8.5,0.8$ and $\sin \left(\text{π}/\text{8}\right)$.

MATLAB Code:

a=[9 1 3^2 7/4 0 2.25*8.5 0.8 sin(pi/8)]

% Calculate the value of the equation

Save the MATLAB script with name, chapter2_56830_2_1P.m in the current folder. Execute the script by typing the script name at the command window to get the answer for a row vector with the following elements: $9,1,3^2,7/4,0,2.25\times 8.5,0.8$ and $\sin \left(\text{π}/\text{8}\right)$.

Result:

Conclusion:

Therefore, the created row vector variable $\text{a}$ is $\text{a}=[9,1,9,1.75,0,19.125,0.8,0.3827]$.