Recent content by blah900
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Graduate Some questions about solving eigenproblems to do modal analysis
So basically the D becomes the eigenvalues and Q ends up becoming the eigenvector of the A = M-1K Ax=λx equation? And I would just use ARPACK and find the part of the function that does this for me automatically given the stiffness matrix K and mass matrix M? I think I am beginning to...- blah900
- Post #3
- Forum: Linear and Abstract Algebra
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Graduate Some questions about solving eigenproblems to do modal analysis
So for my graphics class I am currently reading "Stochastic Dynamics: Simulating the Effects of Turbulence on Flexible Structures" by Jos Stam However, while starting to implement it, I've realized my understanding of math is not strong enough to fully understand what is going on so I have a...- blah900
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- Analysis Modal analysis
- Replies: 3
- Forum: Linear and Abstract Algebra
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Finding E[X^2] from a given random variable with distinct probability
Oops my bad. It was supposed to be E of the following values. But, yeah, I guess the way I know would work right?- blah900
- Post #3
- Forum: Calculus and Beyond Homework Help
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Finding E[X^2] from a given random variable with distinct probability
Homework Statement Z is a random variable. P(X=a) = p1 P(X=b) = p2 P(X=c) = p3 P(X=d) = p4 Find the variance. Homework Equations Var(X) = E(X2) - E(X)2The Attempt at a Solution Okay so for the E(X2), I am currently very confused. My professor gave us this formula where E(X^2) =...- blah900
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- Probability Random Random variable Variable
- Replies: 3
- Forum: Calculus and Beyond Homework Help