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North Spore Shop: Bulk Substrate

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Re: What are Sin and Cos? [Re: ChronicCluster]
    #13251324 -

Sin and Cos are functions that map points in the X Y plane to the unit circle.  They are conformal mapping functions, in that they provide for angle information to be retained in the mapping.


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:smug: [/url][/url] 
:smirk: IF THE NEIGHBORS COMPLAIN BECAUSE THE MUSIC'S TOO LOUD, TURN IT UP SO YOU CAN'T HEAR THEM BITCH    :smirk:

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Re: What are Sin and Cos? [Re: laserpig]
    #13251380 -

laserpig said:
i'm saying that one angle (as long as it's not the right angle) is enough to define the whole shape of a right triangle

once the calculator "knows" the shape of the triangle, it necessarily also knows (by which i mean, it can calculate) the ratios between any two sides

since sine, cosine, etcetera, are just ratios between sides, that's why you can input a single number and get a useful output



Alright so lets say we have 3 angles, 27, 63, 90.  We are trying to find out the sin(27).  So now we know all the angles in the triangle.  Compute the sin using your method

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Re: What are Sin and Cos? [Re: Chespirito]
    #13251404 -

you have completely misunderstood what i was trying to explain

that is not a method for computing sine or cosine, it was an explanation to help the OP understand why inputting one angle is enough info for the calculator to determine a ratio


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Re: What are Sin and Cos? [Re: laserpig]
    #13251421 -

Oh I see, Im sorry.  I thought you were saying thats how a calculator calculates the sine.  And I was trying to imply that the function is nonlinear by nudging you in that direction.

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Re: What are Sin and Cos? [Re: Chespirito]
    #13251443 -

most people don't think in functions, and those that do are almost guaranteed to already have a solid grasp of what sine and cosine are

that's why i wasn't trying to explain it as a function
however you are of course correct that sine etc are nonlinear


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Weedmaster P knows the truth.

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Re: What are Sin and Cos? [Re: laserpig]
    #13251454 -

sohcahtoa!

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Re: What are Sin and Cos? [Re: Inu]
    #13251898 -

Some Old Horse
Caught A Horse
Taking Oats Away.


Mine's better.  It's not some random indian word.  :lol:


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Re: What are Sin and Cos? [Re: ChronicCluster]
    #13251906 -

what calculus are you taking?


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Re: What are Sin and Cos? [Re: CaptainAhab]
    #13251920 -

Once I realized that trig is a language to talk about ratios it all made sense, in a second flat, it all made sense.


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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.

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Re: What are Sin and Cos? [Re: CaptainAhab]
    #13251946 -

CaptainAhab said:
what calculus are you taking?


Calculus and analytical geometry.  Of a single variable.  or something.


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Re: What are Sin and Cos? [Re: ChronicCluster]
    #13251971 -

ah yes. I remember that one. I've since moved on to multivariable. It's a good time. But yeah, sine is the vertical coordinate of the arc endpoint shown in this picture:



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Re: What are Sin and Cos? [Re: CaptainAhab]
    #13251977 -

CaptainAhab said:
ah yes. I remember that one. I've since moved on to multivariable. It's a good time. But yeah, sine is the vertical coordinate of the arc endpoint shown in this picture:




Gif fail


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Never judge a man until you walk a mile in his shoes. But, by that time you're a mile away and you got his shoes, so fuck em.

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Re: What are Sin and Cos? [Re: blewmeanie]
    #13252010 -

just wait until you get to non-linear equations. :crankey:


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North Spore Shop: Bulk Substrate

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