Results 1 to 2 of 2

Math Help - choosing the parameters

  1. #1
    Newbie
    Joined
    Jun 2008
    Posts
    6

    choosing the parameters

    Many calendars number the days of the year. January 1st gets number one, january 2nd gets number 2, january 31st gets 31, february 1st gets 32, december 31st gets 365 in a non-leap year, etc. mary ann noticed that on the northern hemisphere island where she lived there was 14 hours, 42 minutes of sunlight on the longest day of the year and 9 hours, 18 minutes on the shortest. created a sin function or cosine function that would allow someone to input the day number and get the hours of sunlight. explain your reasoning for choosing the parameters that you have.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Aug 2007
    From
    USA
    Posts
    3,110
    Thanks
    2
    Northern Hemisphere.

    Longest = Summer Solstice = June 21ish
    Shortest = Winter Solstice = December 20ish
    Middle-est = Vernal Equinox = March 21ish
    Other Middle-est = Autumnal Equinox = September 21ish

    Where is sin(x) the Greatest? The Least? Middle? What is the period of sin(x)? What is it's amplitude?

    Compare y = sin(x) with y = A + sin(x)

    Compare y = sin(x) with y = sin(x - B)

    Compare y = sin(x) with y = C*sin(x)

    Compare y = sin(x) with y = sin(D*x)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Choosing
    Posted in the Discrete Math Forum
    Replies: 7
    Last Post: November 15th 2011, 11:37 AM
  2. choosing a committee
    Posted in the Discrete Math Forum
    Replies: 2
    Last Post: May 12th 2010, 12:01 PM
  3. combinations choosing
    Posted in the Discrete Math Forum
    Replies: 5
    Last Post: May 7th 2010, 11:26 PM
  4. Choosing the best ad
    Posted in the Advanced Statistics Forum
    Replies: 0
    Last Post: September 21st 2009, 04:44 AM

Search Tags


/mathhelpforum @mathhelpforum