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Calculation error for floor function floor(1.4/0.025)

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Shahar
Shahar on 20 May 2013
if x = floor(1.4/0.025) is 55 in Matlab, how does y = 1.4/0.025 is 56?

Accepted Answer

Iain
Iain on 20 May 2013
1.4/0.025 actually evaluates to 55.9999999999999928946.
The error is in the FIFTEENTH decimal place, which is an extremely small error, however, it is less than 56, and will "floor" to 55.

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