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well, a silly question
why 0.07*400 is not equal to 28?
see screenshot;

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Image Analyst
Image Analyst am 28 Nov. 2020

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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:
https://matlab.fandom.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_.28or_similar.29_not_equal_to_zero.3F

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Gefragt:

Wenjuan
Wenjuan
am 28 Nov. 2020

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Image Analyst
Image Analyst
am 28 Nov. 2020

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