Thread: ABOUT CALCULATION - Biorhythms

  1. #1
    Registered User
    Join Date
    Jan 2006

    ABOUT CALCULATION - Biorhythms


    this is my function and i will state the problem at the bottom..

    //calculate the physical cycle which has physical curve 23 days
    double physicalCycle(Date& dob, Date& currentDate)
       double score;
       double distance = distanceFromDobAndCurrentDate(dob, currentDate);
       score = 100 * sin(360*(distance/23));
       return score;
    //check - the answer should be 63.10879473
    when i entered
    dob: 1 1 1969
    current date: 1 6 2004

    the output of the physical cycle should be 63.10879473 but it is wrongly output which is -80.---

    can someone tell me wat is the problem, is it the formula or..?

    this is the website u can calculate the physical cycle

  2. #2
    carry on JaWiB's Avatar
    Join Date
    Feb 2003
    Seattle, WA
    Have you checked that the distance is calculated correctly? Have you taken into account that sin takes radians, not degrees? (To convert from degrees to radians multiply by pi and divide by 180)
    "Think not but that I know these things; or think
    I know them not: not therefore am I short
    Of knowing what I ought."
    -John Milton, Paradise Regained (1671)

    "Work hard and it might happen."

  3. #3
    Registered User
    Join Date
    Jan 2006
    i though tat sin is in the library..

  4. #4
    Registered User
    Join Date
    Jan 2006
    yes the distance is 100% sure correct

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