Recent content by andyc10

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    Graduate Completeness of Eigenfunctions

    I understand what is meant by the orthogonalilty of eigenfunctions... ...but what is measnt by the completeness of eigenfunctions?
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    Another mathamatician neede to check this CURL-GRAD-DIV

    Thanks guys, sorted it.
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    Another mathamatician neede to check this CURL-GRAD-DIV

    http://en.wikipedia.org/wiki/Vector_Laplacian A_{x}=x^{2}z^{3} A_{y}=0 A_{z}=0\nabla^{2}A_{x}=2z^{3} \Rightarrow\nabla^{2}A=2z^{3}i \Rightarrow-\nabla^{2}F=-2z^{3}i is this not right?
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    Another mathamatician neede to check this CURL-GRAD-DIV

    Homework Statement I have repeated this problem over and over again so either the question is wrong or my likely its my method that's at fault. Please can someone check this for me. Prove this is true: \nabla\times(\nabla \times F)=-\nabla^{2}F+\nabla(\nabla.F) for F=x^{2}z^{3}i...
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    Help with Quantum Mechanics Homework

    Homework Statement Below is a past paper question from a paper i am working through in preperation for my exams. I am having particular trouble with this question, it doesn't seem as straight forward and formulated as other questions. I am unsure if anything i have done is right so any help...