Chapter 4, Problem 1P

To determine

The Body Mass index by taking the variables as input from user.

Answer to Problem 1P

Solution:

The Body Mass index is $24.6$.

Explanation of Solution

Given Information:

• The mass of the person is $162\text{lb}$.
• The height of the person is $68\text{in}\text{.}$
• The BMI is calculated as $BMI=703\frac{W}{h^2}$.

Formula to calculate the BMI is

$BMI=703\frac{W}{h^2}$

Where,

• $BMI$ is the Body Mass index.
• $W$ is the weight of person in $\text{lb}$.
• $h$ is the height of person in $\text{in}.$

Substitute $162\text{lb}$ for $W$ and $68\text{in}$ for $h$ to find $BMI$.

$\begin{array}{c}BMI=703\frac{\left(162\text{lb}\right)}{{\left(68\text{in}\right)}^2}\\ =24.6293\\ \approx 24.6\end{array}$

Write the MATLAB script that calculates the Body Mass index by taking the variables as input from user.

MATLAB Code:

W = input('Enter the weight: ');

% Provide input to the variable W.

h = input('Enter the height: ');

% Provide input to the variable h.

BMI = round((703*W)/(h^2),1);

% Calculate the BMI.

fprintf('The BMI is: %f\n', BMI);

% Print the result.

Save the MATLAB script with name, Chapter1_56830_4_1P.m in the current folder. Execute the script by typing the script name at the command window to calculate the Body Mass index by taking the variables as input from user.

Result:

Conclusion:

Therefore, the Body Mass index is $24.6$.