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MIT 6.00 Intro Computer Science (OCW)
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OpenStudy (anonymous):
in lecture 3 find square root of a number. there is code while abs(ans**2 - x) >= epsilon and ans <= x: I can understand the first equation, but why do we need ans <= x? I tried remove this ans<=x , looks still can get correct answer. Can you help me?
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OpenStudy (anonymous):
I believe you will find it stops the program going into an infinite loop if the initial value of x is negative.
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