How to get the answer?

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Abo Mohammed
Abo Mohammed 2018-3-28
编辑： Walter Roberson 2018-3-28
Create a function to calculate the area of three circles with different radius in your choice. use for loop to call the function and display the results as a column vector.
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Birdman
Birdman 2018-3-28
Share what you have done so far.
Abo Mohammed
Abo Mohammed 2018-3-28
编辑：Walter Roberson 2018-3-28
I created below function but still cannot understand how to disply the results as a column vector.
function Ca=Circle_area(r)
Ca=pi*r^2;
end

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回答（1 个）

ES
ES 2018-3-28
I have just reused your function.
function homework()
arrRadius = [5,3.5,6];%Random radii
arrArea = zeros(size(arrRadius, 2),1);%preallocate a array (column vector)
for iLoop=1:length(arrRadius)
arrArea(iLoop,1) = Circle_area(arrRadius(iLoop));
end
disp(arrArea);
end
function Ca=Circle_area(r)
Ca=pi*r^2;
end

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