I'm doing an exercise of Approximation.
Please detail explain
thank you!
更新1:
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Form 2 Maths what is lower limit and upper limit?
2008-08-05 6:24 am
As above, what is lower limit and upper limit?
I'm doing an exercise of Approximation.
Please detail explain
thank you!
I'm doing an exercise of Approximation.
Please detail explain
thank you!
回答 (2)
2008-08-05 6:37 am
✔ 最佳答案
lower limit---下限upper limit---上限
e.g. 1425cm
上限=142+5=147cm
下限=142-5=137cm
2008-08-09 9:54 pm
upper limit -(一個數值的最大可能值)上限
lower limit -(一個數值的最小可能值)下限
1a. The upper limit of length= 47 + (1/2)
= 47.5 (cm)
The lower limit of length= 47-0.5
=46.5 (cm)
1b. The upper limit of width= 9.8 + (0.1/2)
= 9.85 (cm)
The lower limit of length= 9.8-0.05
=9.75 (cm)
1c. The upper limit of area= 47.5 X 9.85
=467.875 (cm^2)
The lower limit of area= 46.5 X 9.75
= 453.375 (cm^2)
2. The maximum absolute error of the time used
= 160 X 0.3125%
= 0.5 (s.)
The upper limit = 160 +0.5
= 160.5 (s.)
The lower limit = 160 -0.5
= 159.5 (s.)
lower limit -(一個數值的最小可能值)下限
1a. The upper limit of length= 47 + (1/2)
= 47.5 (cm)
The lower limit of length= 47-0.5
=46.5 (cm)
1b. The upper limit of width= 9.8 + (0.1/2)
= 9.85 (cm)
The lower limit of length= 9.8-0.05
=9.75 (cm)
1c. The upper limit of area= 47.5 X 9.85
=467.875 (cm^2)
The lower limit of area= 46.5 X 9.75
= 453.375 (cm^2)
2. The maximum absolute error of the time used
= 160 X 0.3125%
= 0.5 (s.)
The upper limit = 160 +0.5
= 160.5 (s.)
The lower limit = 160 -0.5
= 159.5 (s.)
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