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Math and Science =>
Technology & Calculator Open Topic
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Mr. Oblivion
Newbie
Joined: 11 Dec 2006
Posts: 22
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 Posted: 11 Dec 2006 10:23:20 pm Post subject: |
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Well, here's a little history and science for you guys that don't know
There was once a brilliant physician by the name of (name with-held). As he gained experience, (name with-held) developed a formula to determine the patterns of his patients' emotional, mental and physical health:
Y1=50sin((2pi/V)X)+50
Y2=50
Values of V:
23: Physical health
28: Emotional Health
33: Mental Health
In window:
Xmin=subject's days old
Xmax= subject's days old +30
The rest can be zoom, fitted, once graphed
You should end up with a sin wave. The point of the graph all the way to the left is the subject's (mental/physical/emotional) health today. all the way to the right is that health in 30 days. The Horizontal; line that cuts the whole thing in half is their 50% line. Obviously, the low points are the low health points and the high points on the graph are the high points of the health.
Well, I hope you all can enjoy this. It is really fun to do with friends. P.S. while calculating days old, don't forget leap years!!!  |
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trigkid213
Member
Joined: 30 Mar 2006
Posts: 208
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| Posted: 11 Dec 2006 10:27:03 pm Post subject: |
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| My trig teacher loved graphing calculators, and she actually showed us how to make a biorhythm program. |
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Mr. Oblivion
Newbie
Joined: 11 Dec 2006
Posts: 22
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| Posted: 11 Dec 2006 10:33:19 pm Post subject: |
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| Oh that is awesome. My Geometry teacher, who is also a trig teacher taught me this. could you give me the program for this, if it isn't too long? |
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trigkid213
Member
Joined: 30 Mar 2006
Posts: 208
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| Posted: 11 Dec 2006 10:34:31 pm Post subject: |
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| Sorry, that was a while ago. Don't have it any more. It's pretty easy to make, though. |
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Mr. Oblivion
Newbie
Joined: 11 Dec 2006
Posts: 22
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| Posted: 12 Dec 2006 06:29:01 am Post subject: |
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| yep I would imagine it has something to do with a way to determine age and then a way to insert that info and whatnot into a graph, right? |
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trigkid213
Member
Joined: 30 Mar 2006
Posts: 208
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| Posted: 12 Dec 2006 07:34:05 pm Post subject: |
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| Basically. Try it! |
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thornahawk
μολών λαβέ
Active Member
Joined: 27 Mar 2005
Posts: 569
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| Posted: 13 Dec 2006 04:12:32 pm Post subject: |
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Checking problem 1.45 in this book might be of use. ;)
thornahawk |
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Mr. Oblivion
Newbie
Joined: 11 Dec 2006
Posts: 22
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| Posted: 14 Dec 2006 11:00:24 pm Post subject: |
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| I am not sure I get what you are aiming at |
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thornahawk
μολών λαβέ
Active Member
Joined: 27 Mar 2005
Posts: 569
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| Posted: 15 Dec 2006 05:08:43 am Post subject: |
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There's Matlab code in that book to do a sample biorhythm. It should be easy to translate that into TI-Basic.
thornahawk |
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Mr. Oblivion
Newbie
Joined: 11 Dec 2006
Posts: 22
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| Posted: 15 Dec 2006 04:27:41 pm Post subject: |
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| oh, ok thanks |
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