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Published on 2010-04-16T04:45:13Z
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Suppose you have a (n*n) matrices and problematically you have to check that, whether it's a upper diagonal matrices or not. Is there any generic method to solve this problem.
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I suppose the naive implementation of a + operator for matrices (2D for instance)
in C++ would be:
class Matrix {
Matrix operator+ (Matrix other) const {
Matrix result;
// fill result with *this.data plus other.data
return result;
}
}
so we could use it like
Matrix a;
Matrix…
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What is the best way to scatter a Fortran 90 matrix by its rows rather than columns? That is, let's say I have a matrix a(4,50) and I want to MPI_SCATTER it onto two processes where each part is alocal(2,50), where rank 0 has rows 1 and 2, and rank 1 has 3 and 4. Now, in C, this is simple since arrays…
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I'm working on a project, written in Java, which requires that I build a very large 2-D sparse array. Very sparse, if that makes a difference. Anyway: the most crucial aspect for this application is efficency in terms of time (assume loads of memory, though not nearly so unlimited as to allow me…
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How can I define a array of boost matrices as a member variable?
None of the following worked.
boost::numeric::ublas::matrix arrayM(1, 3)[arraySize];
boost::numeric::ublas::matrix(1, 3) arrayM[arraySize];
boost::numeric::ublas::matrix arrayM[arraySize](1, 3);
Thanks,
Ravi.
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I'm starting to learn about 3D rendering and I've been making good progress. I've picked up a lot regarding matrices and the general operations that can be performed on them.
One thing I'm still not quite following is OpenGL's use of matrices. I see this (and things like it) quite a lot:
x y z…
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If you had to design a study program, with a breadth-of-programming-languages requirement, which stated that the student should be exposed to all major concepts and methodologies that can be taught through (at the minimum) 6 programming languages, which programming languages would you choose to teach…
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(Since I just posted this in another question, but my browser had to be annoying and submit it without content first, here it is again:)
I'm a fan of clean code. I like my languages to be able to express what I'm trying to do, but I like the syntax to mirror that too.
For example, I work on a lot…
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Hi folks,
I am going to develop a facebook game as topic for my thesis.
I am wondering which programming languages i should choice.
I am used to programming in .NET. But i am also comfortable in C++ and Java.
I don't want to use Flash as the graphical frontend since i don't like it.
So i guess…
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Are there any objective measures for measuring the power of programming languages? Turing-completeness is one, but it is not particularly discriminating. I also remember there being a few others measures of power which are more limited versions (like finite-state-autonoma), but is there any objective…
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I'm a fan of clean code.
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