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primary school question!

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Wenjuan
Wenjuan on 28 Nov 2020
Answered: Image Analyst on 28 Nov 2020
well, a silly question
why 0.07*400 is not equal to 28?
see screenshot;

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Answers (1)

Image Analyst
Image Analyst on 28 Nov 2020
Truncation error due to double's only using 64 bits instead of an infinite number of bits. It will be off a very small amount, eps(28). See the FAQ for a thorough discussion:

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