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Topic: Interesting problem?
Replies: 3   Last Post: Jul 18, 2011 3:54 AM

 Messages: [ Previous | Next ]
 William Elliot Posts: 1,948 Registered: 5/30/08
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.

Date Subject Author
7/17/11 JJ
7/17/11 William Elliot
7/17/11 Philippe 92
7/18/11 rgvickson@gmail.com