Write MATLAB statements to perform the functions described below: If x is greate

Question

Write MATLAB statements to perform the functions described below: If x is greater than or equal to zero, then assign the squareroot of x to the variable squareroot _x and print out the result. Otherwise, print out an error message about the argument of the squareroot function and set squareroot _x equal to zero. The cost per mile for a rented vehicle is $1.25 for the first 100 miles. $0.75 for the next 200 miles, and $0.70 for all miles in excess of 300 miles. Write MATLAB statements that determine the total cost and the average cost per mile for a given number of miles (stored in the variable distance).

Explanation / Answer

Here is the code for you:

%If x is greater than or equal to zero, then assign the square root of x to

%the variable sqrt_x and print out the result. Otherwise, print out an

%error message about the argument of the square root function and set

%sqrt_x equal to zero.

if x >= 0

sqrt_x = sqrt(x);

else

fprintf('Negative numbers doesn''t have real square root. ');

sqrt_x = 0;

end

%The cost per mile for a rented vehicle is $1.25 for the first 100 miles,

%$0.75 for the next 200 miles, and $0.70 for all miles in excess of 300

%miles. Write MATLAB statements that determine the total cost and average

%cost per mile for a given number of miles (stored in the variable

%distance).

if(distance > 300)

totalCost = 1.25 * 100 + 0.75 * 200 + (distance - 300) * 0.70;

else if(distance > 100)

totalCost = 1.25 * 100 + (distance - 100) * 0.75;

else if(distance > 0)

totalCost = 1.25 * distance;

end

end

end

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