What is the most appropriate way to express the following in SymPy: A sum over samples 'x[i]' with 'i' going from concrete 0 to symbolic 'N'. 'x[i]' itself shall be symbolic, i.e. always appear as ...

I want to solve the linear equation for n given points in n dimensional space to get the equation of hyper-plane. for example, in two dimensional case, Ax + By + C = 0. How can I get one solution...

I need to programmatically solve a system of linear equations in C, Objective C, or (if needed) C++. Here's an example of the equations: -44.3940 = a * 50.0 + b * 37.0 + tx -45.3049 = a * 43.0 + ...

I have a system of linear equations that make up an NxM matrix (i.e. Non-square) which I need to solve - or at least attempt to solve in order to show that there is no solution to the system....

I have a system of linear inequalities/equalities to solve in Matlab and I use linprog. As some of the inequalities are strict I use a very small costant eps to get get the strict inclusion as exp...

How to solve a homogenous system Ax = 0, when A is any m * n matrix (not necessarily a square one) in R? # A=[-0.1 0.1]= 1x2 matrix; x=2x1 to be found; 0: 1x1 zero matrix A <- t(matrix(c(-0.1,0...

Is there any algorithm to solve a system of equations expressed in different modulo spaces? For exemple, consider this system of equations: (x1 + x2 ) % 2 = 0 ( x2 + x3) % 2 = 0 (x1 + x2 + x3) % 3...

I don't work with tiles but cubes drawn with sf::Vertex. Each cubes have 6 sides with 4 points each. So i just have to cubes[numCube].sides()[numSide].... to select a side. I create cubes layer....

I was wondering whether there exist any packages or other pre-built solutions for R that are capable of translating sets of linear equations into matrix form (e.g. for solution via the Gauss Seidel...

I'm programming in fortran and trying to use the DGETRI matrix inverter from the Lapack package: http://www.netlib.org/lapack/explore-html/df/da4/dgetri_8f.html But very strangely it seems to be ...

I have a linear equation: vt = v1*x1 + v2*x2 + v3*x3 vt, v1, v2, v3 are scalars with values between 0 and 1. What is the best way to generate one set (any set will be fine) of x1, x2 and x3 that...

Hi I would like to ask my fellow python users how they perform their linear fitting. I have been searching for the last two weeks on methods/libraries to perform this task and I would like ...

I have to solve a system that consists of 32 xor equations, each involving 15 of 32 variables. One would look like this: i[0] = p[0] ^ p[4] ^ p[5] ^ p[10] ^ p[11] ^ p[20] ^ p[21] ^ p[22] ^ p[23] ^...

My problem is that I have a Matrix where the sum of all rows, and the sum of all columns is zero. All numbers are rounded to x decimals. Then I multiply the entire matrix with a number between 0 a...

I am trying to convert the equation below into programming code. The purpose is to find the intersecting point of the two lines. And to pront (y1 - y2)x - (x1 - x2)y = (y1 - y2)x1 - (x1 - x...

I'd like to combine a few metrics of nodes in a social network graph into a single value for rank ordering the nodes: in_degree + betweenness_centrality = informal_power_index The problem is tha...

I am starting use PETSc library to solve linear system of equations in parallel. I have installed all packages, build and run successfully the examples in petsc/src/ksp/ksp/examples/tutorials/ fold...

I am trying to build a script that will dynamically arrange photos like a collage very similar to what is done on http://lightbox.com/explore#spotlight. I can off course write code that would hand...

What are the advantages of using a permutation matrix to swap rows? Why one would create a permutation matrix and then apply a matrix multiplication, is it easier and more efficient than just swapp...

I have to finding any solution (there may exist many or none) of any number of given liner equations with any number of variables. In Java. What libraries and method use? What to implement? I want ...

I want to solve a system of n linear equations containing n variables using a genetic algorithm. I am having difficulty in defining the crossover operation as the solution may consist of floating ...