Question

MATLAB GOD! come and help me

Toy Company makes a variety of inexpensive toys for children all over the world. One of their most successful toy lines is Fly-Like-an-Eagle Kites. While each model of kite comes with the same basic contents, different models come with different length crossbeams and surfaces to accommodate different kite types. Each kite surface is cut from a sheet of plastic as shown in the example image: Your program should start by prompting the user for the length of the vertical crossbeam in centimeters, the length of the horizontal crossbeam centimeters, the upper-to-lower (U-L) size ratio (described below), and the number of kites needed. Crossbeams, vertical or horizontal, must be at least 30 cm long. The U-L ratio and number kites provided must each be greater than 0. Finally, the number of kites must be an integer. In case of any invalid data, repeat the request for that particular item only until the input is valid. The U-L size ratio expresses where (along the length of the kite) the wide spot of the kite lies. Having a U-L ratio of 0.5 means that the distance from where the crossbeams intersect to the top of the kite is 0.5 times the distance from where the crossbeams intersect to the bottom of the kite. The closer the U-L is to 1, the more square the kite surface becomes. Using this information, your program should determine and report the following: What is the minimum height and width of the plastic sheet needed? Assuming the minimum height and width is used: How much waste (in square meters) results from the ends of the sheet (lightly shaded, above). Note, the larger section at each end is NOT a perfect triangle. How much waste (in square meters) results from the top and bottom of each sheet (darkly shaded, above)? What percentage of the plastic sheet is wasted? Your program should allow the user to continue testing kites and only exit when the user chooses to stop testing.

Answer 1

Matlab Code

vertical=0; %initialize vertical length to 0
horizontal=0;   %initialize horizontal length to 0
ulratio=-1; %initialize ulratio to a negetive number
noOfKites=1.1; %initialize noOfKites to a non integer number
while vertical<30   %continue asking for input until vertical length is not atleast 30 cm
    vertical=input('Enter the length of vertical beam in cm (>=5): ');
end
while horizontal<30 %continue asking for input until horizontal length is not atleast 30 cm
    horizontal=input('Enter the length of horizontal beam in cm (>=5): ');
end
while ulratio<=0    %continue asking for input until ulratio is not greater than 0
    ulratio=input('Enter the upper to lower ratio: ');
end
while rem(noOfKites,1)!=0   %continue asking for input until noOfKites is not an integer
    noOfKites=input('Enter the number of kites: ');
end

%calculate the values
minWidth=((1515*horizontal*noOfKites)/3000)/100;
minHeight=((70*vertical)/50)/100;
endWaste=(0.16*minWidth*minHeight)/10.605;
topAndBottomWaste=(2.90*minWidth*minHeight)/10.605;
percentWaste=(29*minWidth*minHeight)/10.605;

%display the calculated values
disp(' ');
disp(['Minimum Width: ', num2str(minWidth), ' m']);
disp(['Minimum Height: ', num2str(minHeight), ' m']);
disp(['End Waste: ', num2str(endWaste), ' m^2']);
disp(['Top and bottom waste: ', num2str(topAndBottomWaste), ' m^2']);
disp(['Percent waste: ', num2str(percentWaste), ' %']);

Output

Enter the length of vertical beam in cm (>=5) : 50 Enter the length of horizontal beam in cm (5) 30 Enter the upper to lower ratio: 0.65 Enter the number of kites: 100 Minimum Width: 15.15 m Minimum Height: 0.7 nm End Waste: 0.16 m 2 Top and bottom waste: 2.9 m2 Percent waste: 29 %