the area of a circle is defined by:
A = (pi)*(r^2)
--> for d = 2 like in your test suite that means:
r = d/2 --> r=1
--> r^2 = 1
--> multplied by pi = 1*pi
so A(d=2) = A(d/2) = A(r) = r^2 * pi = 1^2 * pi = 1 * pi = pi
not 4*pi like your solution suggests.
Your solution would be correct for R=2 - not D=2 - you should correct this. Ether you change the description that the diameter is given (should be radius to be correct) or you change the Test suite inm order to give correct results.
Is my wife right? Now with even more wrong husband
Back to basics 10 - Max Float
Reindex a vector
Calculate distance travelled when given radius and rotations
Sum of diagonals elements of a matrix
Finding fourier transform of a given vector
Maximum value in a matrix
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