将float转换为整数时舍入 [英] Rounding when converting float to integer
问题描述
Cint（3/2）= 2（四舍五入，我原以为答案是1）
Cint（5/2）= 2（向下舍入）
Access帮助说Cint（）向最接近的偶数舍入，但为什么？
我是否需要滚动自己的 ;整数转换让它总是四舍五入
或者下来？
我看了Cint（3 \2）和Cint（5 \2）这似乎一直在下来......这可能会下降......
-
问候，
Br @ dley
Br @ dley写道：Cint（3/2）= 2（舍入起来，我原以为答案是1）
Cint（5/2）= 2（向下舍入）
Access帮助说Cint（）向最近的偶数，但为什么？
我是否需要自己滚动整数转换让它总是向上舍入
或者下来？
我看着Cint（3 \2）和Cint（5 \2）这似乎一直是圆形的>下来......可能会这样做。
格式（3/2） - > 1.5一个字符串。要获得数字，请使用Val（格式（3/2））。
Int（格式（3/2）） - > 1. Int（）删除小数。
格式（5/2） - > 2.5一个字符串。
Val（格式（5/2）） - > 2.5。 Int（格式（5/2）） - > 2.
-
MGFoster ::: mgf00< at> earthlink< decimal-point> net
奥克兰，加利福尼亚州（美国）
公共功能天花板（ByVal d As Double）As Long
天花板= - （Int（-d））
结束函数
MGFoster写道：Br @dley写道：Cint（3/2）= 2（四舍五入，我原以为答案是
1）Cint（5/2）= 2（向下舍入）
Access帮助说Cint（）舍入到最近的偶数，但
为什么？我需要自己滚动吗？整数转换让它始终向上或向下舍入？
我看着Cint（3 \2）和Cint（5 \2）似乎一直在圆形下来......可能会这样做。
格式（3/2） - > 1.5一个字符串。得到一个数字使用Val（格式（3/2））。
Int（格式（3/2）） - > 1. Int（）删除小数。
格式（5/2） - > 2.5字符串。
Val（格式（5/2）） - > 2.5。 Int（格式（5/2）） - > 2。
Ta。我想我的主要问题是为什么Cint（）轮到最近的偶数
数？只是对这种方式的实施感兴趣。
-
问候，
Br @ dley
Cint(3/2) = 2 (rounded up, I would have thought the answer would be 1)
Cint(5/2) = 2 (rounded down)
The Access help says Cint() rounds to the nearest even number, but why??
Do I need to "roll my own" integer conversion to get it to always round up
or down?
I looked at Cint(3\2) and Cint(5\2) which seems to consistently round
down... that may do.
--
regards,
Br@dley
Br@dley wrote:Cint(3/2) = 2 (rounded up, I would have thought the answer would be 1)
Cint(5/2) = 2 (rounded down)
The Access help says Cint() rounds to the nearest even number, but why??
Do I need to "roll my own" integer conversion to get it to always round up
or down?
I looked at Cint(3\2) and Cint(5\2) which seems to consistently round
down... that may do.
Format(3/2) -> 1.5 a string. To get a number use Val(Format(3/2)).
Int(Format(3/2)) -> 1. Int() removes the decimal.
Format(5/2) -> 2.5 a string.
Val(Format(5/2)) -> 2.5. Int(Format(5/2)) - > 2.
--
MGFoster:::mgf00 <at> earthlink <decimal-point> net
Oakland, CA (USA)
Public Function Ceiling(ByVal d As Double) As Long
Ceiling = -(Int(-d))
End Function
MGFoster wrote:Br@dley wrote:Cint(3/2) = 2 (rounded up, I would have thought the answer would be
1) Cint(5/2) = 2 (rounded down)
The Access help says Cint() rounds to the nearest even number, but
why?? Do I need to "roll my own" integer conversion to get it to always
round up or down?
I looked at Cint(3\2) and Cint(5\2) which seems to consistently round
down... that may do.
Format(3/2) -> 1.5 a string. To get a number use Val(Format(3/2)).
Int(Format(3/2)) -> 1. Int() removes the decimal.
Format(5/2) -> 2.5 a string.
Val(Format(5/2)) -> 2.5. Int(Format(5/2)) - > 2.
Ta. I guess my main question was WHY the Cint() rounds to the nearest even
number?? Just interested in the reasoning for implementing it that way.
--
regards,
Br@dley
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