how to round 10.5 to 10 ?

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tomer polsky
tomer polsky 2018-7-3
回答： Asit Kumar 2018-7-4
hello I want to round down from 10.5 to 10 is there a command for this operation ?
  1 个评论
Walter Roberson
Walter Roberson 2018-7-3
Is the question about the rounding of values that end in 0.5 exactly, since round() typically rounds those up?

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回答（2 个）

Stephen23
Stephen23 2018-7-3
fix
floor
Asit Kumar
Asit Kumar 2018-7-4
both fix and floor will give the same answer for positive decimal numbers (if your intention is to round down regardless the decimal value)
But they will produce different results for negative decimals:
1. fix
fix rounds towards 0
fix(10.5) = 10
fix(-10.5) = -10
2. floor
floor rounds towards negative infinity
floor(10.5) = 10
floor(-10.5) = -11

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