Chapter 19, Problem 1ICA

Answer the following questions.

a. For what integer values of D will the code between if and end execute?

if D >= – 1 && 3 > D

code

end

b. For what values of F will the code between if and end execute?

if F >= 100 || F <= 5

code

end

c. What combinations of values for B and Q will cause a warning to be displayed?

if B >100 || (B<20 && Q~=0)

fprintf ('WARNING! Pararneters out of bounds. \n')

end

To determine

Find the integer values for which the code inside the if and end executes.

Answer to Problem 1ICA

The integer values for which the code inside the if and end executes are $\underset{\_}{-1\le \text{D}<3}$.

Explanation of Solution

The English translation of the if statement says that, the if statement is true when the variable D is greater than or equal to -3 and less than 1.

So from the number line, the values of D for which the expression is true are $-1\le \text{D}<3$.

Conclusion:

Hence, the integer values for which the code inside the if and end executes are $\underset{\_}{-1\le \text{D}<3}$.

To determine

Find the integer values for which the code inside the if and end executes.

Answer to Problem 1ICA

The integer values for which the code inside the if and end executes are $\underset{\_}{\text{F}\in ℝ-\left(5,100\right)}$.

Explanation of Solution

The English translation of the if statement says that, the if statement is true when the variable F is greater than or equal to 100 or less than or equal to 5.

So from the number line, the values of F for which the expression is true are $\text{F}\in ℝ-\left(5,100\right)$, where $ℝ$ denotes the set of real numbers.

That is F can be any real number excluding numbers between 5 to 100.

Conclusion:

Hence, the integer values for which the code inside the if and end executes are $\underset{\_}{\text{F}\in ℝ-\left(5,100\right)}$.

To determine

Find the integer values for which the code inside the “if” and “end” executes.

Answer to Problem 1ICA

The integer values for which the code inside the “if” and “end” executes are $\underset{\_}{\text{B}=\{\begin{array}{l}\text{B}>100,\text{Q}=0\\ \text{B}<20,Q\ne 0\end{array}}$.

Explanation of Solution

The English translation of the if statement says that, the if statement is true when the variable B is greater than 100 or when B is less than 20 and Q is not 0.

So from the number line, the values of B and Q for which the expression is true are $\text{B}=\{\begin{array}{l}\text{B}>100,\text{Q}=0\\ \text{B}<20,Q\ne 0\end{array}$

Conclusion:

Hence, the integer values for which the code inside the “if” and “end” executes are $\underset{\_}{\text{B}=\{\begin{array}{l}\text{B}>100,\text{Q}=0\\ \text{B}<20,Q\ne 0\end{array}}$.