function area=area_circle(d)
% Calculates the area of a circle given the diameter :)
area=pi*(d/2).^2;
end
>> edit area_circle
>> area_circle(4)
ans =
50.2655
>> area_circle(2)
ans =
12.5664
>> area_circle(3)
ans =
28.2743
>> area_circle(1)
ans =
3.1416
>> help area_circle
Calculates the area of a circle given the diameter
>> radii=[3,4,5]; area_circle(radii)
Error using ^
Incorrect dimensions for raising a matrix to a power. Check that the matrix is square and the power is
a scalar. To operate on each element of the matrix individually, use POWER (.^) for elementwise power.
Error in area_circle (line 3)
area=pi*R^2;
>> radii=[3,4,5]; area_circle(radii)
ans =
28.2743 50.2655 78.5398
>> radii=[3,4,5]; area_circle(radii)
ans =
7.0686 12.5664 19.6350
>>