Question

How should I round up the numbers I have for A and D? Or should I just leave them as they are? My math is a bit rusty...

(This is for a formula I'm trying to create using the form y=d + a cos [b(t-c)] to calculate daylight hours in a particular city for a one-year period. The highest amount of daylight is 14.44 and the low is 9.35)

this is what i have for A and D:
A= 1/2(14.44-9.35)
= 2.545

D = 1/2 (14.44+9.35)
= 11.895

B= 2pi/365

Answer 1

could you post the exact problem for this?
because w/o it those numbers are meaningless :p

Answer 2

I'm trying to create a formula modelling the hours of daylight in a particular city/year using the form y=D+A sin [B(t-c)] with a set of data from the US Naval Observatory (available at http://aa.usno.navy.mil). The highest amount of daylight is 14.44 and the lowest amount is 9.35

I'd post the entire data set, but it's way too many numbers