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Thread: sin-1 / cos-1 / tan-1?

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    Default sin-1 / cos-1 / tan-1?

    What is the function for sin-1(0.8136123) for example?
    And cos-1 and tan-1 too.

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    Do you mean the inverse of sin()?
    I think SCAR calls it ArcSin.



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    function Sin(e : Extended): Extended;
    The Sin function is a mathematical function giving the Sine value of X given in radians.

    function Cos(e : Extended): Extended;
    The Cos function is a mathematical function giving the Cosine value of X given in radians.

    function Tan(X: Extended): Extended;
    The Tan function is a mathematical function giving the Tangent value of X in radians.

    function ArcTan(X: Extended): Extended;
    The ArcTan function is a mathematical function giving the value in radians of the Arc Tangent of X.

    function ArcSin(X: Extended): Extended;
    The ArcSin function is a mathematical function giving the value in radians of the Arc Sine of X.

    function ArcCos(X: Extended): Extended;
    The ArcCos function is a mathematical function giving the value in radians of the Arc Cosine of X.

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    SCAR -> F1, next time

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    Quote Originally Posted by n3ss3s View Post
    SCAR -> F1, next time
    He probably didn't know that ArcSin/Cos/Tan meant inverse of Sin/Cos/Tan (-1)...

    "Failure is the opportunity to begin again more intelligently" (Henry Ford)


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    Damn I still gotta learn all this shit at school
    Ce ne sont que des gueux


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    its not shit :P its very interesting (for me )

    sin300 = sin(270 + 30) = -cos30 :P
    cos-315 = cos315 = cos (360 - 45) = cos45
    :P

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    me doesn't get ;O
    Ce ne sont que des gueux


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    nah.. its easy part :P
    :P

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    Quote Originally Posted by Iroki View Post
    its not shit :P its very interesting (for me )

    sin300 = sin(270 + 30) = -cos30 :P
    cos-315 = cos315 = cos (360 - 45) = cos45
    why say this?
    its like saying

    " 10 + 10 = 20
    10 - 20 = -10"

    sin, cos and tan are used to get the size of triangle lenghts with angle sizes given. amongst other things.
    Did someone say GDK?

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    Trigonometry baby. Gotta love it.

    Stupid triangles.

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    I'm pretty sure there are a couple trigonometry tutorials in the tutorial section, please correct me if I am wrong.

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    I'm making one atm, but Zephy's is pro.

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    I have to say Zephyr is very talented and is a great asset to the community .

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