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square of a number without using * operator

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alangs

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can anybody tell me how i can calculate the square of a number without using * operator.plz give me the answer in c language by using for loop......
 

You can calculate Exp(Log(x)+Log(x))
 

Adding the first N odd numbers is equal to calculate N^2.

1 = 1^2
1 + 3 = 2^2
1 + 3 + 5 = 3^2
1 + 3 + 5 + 7 = 4^2

and so on...
 

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