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Math Help - what is the meaning of

  1. #1
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    what is the meaning of

    if a formula of a plane is Ax+By+cZ=0

    what is the meaning of

    A(x-x0)+B(y-y0)+C(z-z0)=0
    ??
    its about divergent
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  2. #2
    Super Member Failure's Avatar
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    Quote Originally Posted by transgalactic View Post
    if a formula of a plane is Ax+By+cZ=0

    what is the meaning of

    A(x-x0)+B(y-y0)+C(z-z0)=0
    ??
    its about divergent
    A(x-x_0)+B(y-y_0)+C(z-z_0)=0 is the equation of a plane parallel to the plane Ax+By+Cz=0 that passes through the point (x_0,y_0,z_0).
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  3. #3
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    its the formula of a place where (A,B,C) is it normal and x0 y0 z0 is a point on it
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  4. #4
    Member alunw's Avatar
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    Perhaps I shouldn't have given you bad reputation for your last post, but it is scarcely intelligible though there are glimmers of truth in it. Failure answered your question well. At any point on any plane Ax+By+Cz+d=0 the vector (A,B,C) starting from that point is normal to the plane. And the point (x0,y0,z0) is on your new plane and does have a normal like that of course.
    But what is "formula of a place" supposed to mean. The equation of the plane is certainly not the equation of the normal which is how I first read your post.
    Maybe English is not your first language - but whether it is or not you need to express your thoughts much more clearly otherwise nobody will understand what you are trying to say.
    Last edited by alunw; August 12th 2009 at 03:44 AM. Reason: misprints not good when I am criticising other's use of English!
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