Calculation error for floor function floor(1.4/0.025)

if x = floor(1.4/0.025) is 55 in Matlab, how does y = 1.4/0.025 is 56?

Answer 1

[Iain]

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.

Answer 2

[Zhang lu]

Hi

floor(1.4e3/0.025e3)