Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.


Math Forum
»
Discussions
»
sci.math.*
»
sci.math
Notice: We are no longer accepting new posts, but the forums will continue to be readable.
Topic:
Interesting problem?
Replies:
3
Last Post:
Jul 18, 2011 3:54 AM




Re: Interesting problem?
Posted:
Jul 17, 2011 4:30 AM


On Sat, 16 Jul 2011, JJ wrote:
> I have a machine, the output of which I can sample at any time. The > output represents the flow from the machine for the last 24 hours. I > need to calculate the flow for a given 8 hour period. Is this possible > and if so how? You can sample the machine as many times as necessary, > but the fewer the better (so I can actually implement the solution). > > Example: Sample at 9pm represents flow between 9am and 9pm. Sample at > 5pm represents flow from 5am to 5pm. How could I get the flow for the > period 9am to 5pm? > Let a = flow from 5 am to 5 pm, b = flow from 9 am to 9 pm.
The flow from 9 am to 5 pm can be approximated as
(2a/3 + 2b/3)/2 = 2(a + b)/3.



