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Chapter: 4 / Q: 15.4
In chemistry, the pH of an aqueous solution is a measure of its acidity. The pH scale ranges from 0 to 14, inclusive. A solution with a pH of 7 is said to be neutral, a solution with a pH greater than 7 is basic, and a solution with a pH less than 7 is acidic
Chapter: 4 / Q: 16.4
Write a function flipvec that will receive one input argument. If the input argument is a row vector, the function will reverse the order and return a new row vector. If the input argument is a column vector, the function will reverse the order and return a new column vector
Chapter: 4 / Q: 17.4
In a script, the user is supposed to enter either a ‘y’ or ‘n’ in response to a prompt. The user’s input is read into a character variable called “letter”
Chapter: 4 / Q: 18.4
Write the script from the previous exercise using a switch statement instead
Chapter: 4 / Q: 19.4
In aerodynamics, the Mach number is a critical quantity. It is defined as the ratio of the speed of an object (e.g., an aircraft) to the speed of sound. If the Mach number is less than 1, the flow is subsonic; if the Mach number is equal to 1, the flow is transonic
Chapter: 4 / Q: 20.4
Write a script that will generate one random integer, and will print whether the random integer is an even or an odd number. (Hint: an even number is divisible by 2, whereas an odd number is not; so check the remainder after dividing by 2.)
Chapter: 4 / Q: 21.4
Whether a storm is a tropical depression, tropical storm, or hurricane is determined by the average sustained wind speed
Chapter: 4 / Q: 22.4
Ch4Ex21.m % Prints whether a storm is a tropical depression, tropical % storm, or hurricane based on wind speed wind = input('Enter the wind speed of the storm: '); if wind < 38 disp('Tropical depression') elseif wind >= 38 && wind < 73 disp('Tropical storm')
Chapter: 4 / Q: 23.4
Rewrite the following switch statement as one nested if-else statement (elseif clauses may be used). Assume that there is a variable letter and that it has been initialized
Chapter: 4 / Q: 24.4
Rewrite the following nested if-else statement as a switch statement that accomplishes exactly the same thing. Assume that num is an integer variable that has been initialized, and that there are functions f1, f2, f3, and f4
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