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TopNewestHey Ali Akbar, are you an Ismaili? Coz I am. – Akbarali Surani · 3 years, 3 months ago

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yes,\( 0^{2}=0 \) – Tan Li Xuan · 3 years, 10 months ago

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Yes. A perfect square is any number that is a square of an integer, and since \( 0^2 = 0 \), zero is a perfect square. See http://en.wikipedia.org/wiki/Square_number – Hero P. · 3 years, 11 months ago

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