Recent content by angryfaceofdr

  1. A

    Uniform Convergence and integration

    My fear is what if I "choose" the wrong statement A like I did in post #3? How would I know what the "right" statement is?
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    Uniform Convergence and integration

    How does one know when to do this?
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    Uniform Convergence and integration

    How would you get \neg A ? Do you negate closed and the interval as a>x>b? Or in other words, " Assume the functions u_n (x) are not continuous on the not closed interval a > x > b"?
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    Uniform Convergence and integration

    What can I conclude using the following theorem? Let the functions u_n (x) be continuous on the closed interval a \le x \le b and let them converge uniformly on this interval to the limit function u(x) . Then \int_a^b u (x) \, dx=\lim_{n \to \infty} \int_a^b u_n (x) \, dx Can...
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    What is the Difference Between a Vector Space and a Coordinate Space?

    A follow up to this... http://en.wikipedia.org/wiki/Euclidean_space wiki says : "For any non-negative integer n, the space of all n-tuples of real numbers forms an n-dimensional vector space over R, which is denoted R^n and sometimes called real coordinate space. An element of R^n is...
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    What is the Difference Between a Vector Space and a Coordinate Space?

    Is my post from #3 correct? Ok, so in linear algebra I recall reading something along the lines of Theorem 1: Suppose , \vec{u} and \vec{v} are vectors in \mathbb{R}^n . We say that \vec{u} and \vec{v} are orthogonal if \vec{v}\cdot \vec{u}=0 . So... say we are "in"...
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    Linear Algebra - Find unit vector orthogonal to 2, 4-space vectors?

    errr... I got b=+/- 3/7 = \pm \frac{3}{7} ahh okay cool
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    Linear Algebra - Find unit vector orthogonal to 2, 4-space vectors?

    hmmm... so 2b+d=0 ----> d=-2b 2b+3c=0----> c=-(2/3)bb^2+c^2+d^2=1=(4/9)b^2+4b^2+b^2 b^2=9/49
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    Linear Algebra - Find unit vector orthogonal to 2, 4-space vectors?

    means that the two vectors are orthogonal to each other
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    Linear Algebra - Find unit vector orthogonal to 2, 4-space vectors?

    I usually just eliminate enough variables so that it fits with the number of equations i have (and pray it works)
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    Linear Algebra - Find unit vector orthogonal to 2, 4-space vectors?

    To tell you the truth, I don't know... I think you might lose too much information if you use too many zeros
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