Does python have a built-in function that converts a matrix into row echelon form (also known a开发者_开发问答s upper triangular)?If you can use sympy, Matrix.rref() can do it:
I\'m trying to perform computations involving matrix operations and complex math - sometimes together, in C. I\'m very familiar with Matlab and I know these types of computations could be performed si
I\'m trying to write a cubic spline interpolation program. I have written the program but, the graph is not coming out correctly. The spline uses natural boundary conditions(second dervative at start/
I\'m making a game in XNA that is a shooting role-plaing game. I have m开发者_StackOverflowade a human model in Blender and imported it into XNA. I loaded it and can rotate the entire model, but how d
I have a 6x7 matrix(A) and some operation I\'m doing on it for k=1:50 (number of loops). I know that in order to write a single matrix in an excel file I need:
I have this code: $id = new matrix(array(0=>array(1,0.5,3), 1=>array(2,1,4), 2=>array(1/3,1/4,1)));
Is there an R function or DLL that calculates a nearest positive semi-definite correlation matrix? Finding the nearest positive semi-definite matrix is a 开发者_运维问答well-documented common problem
in Maxima, how is it possible to simply equations that are components of a matrix? I have a rather b开发者_StackOverflowig matrix and want to simplify the components of it (e.g. factor out and cancel
When given a square ma开发者_如何学Gotrix, what would be the best way to find all of the possible arrays within it without using more than one element from any row/column in each array?
Input [[0 0 0 0 0] [0 4 0 0 0] [0 1 0 0 0] [0 1 2 0 0] [0 1 2 3 0]] Intended output [[(0, day00) (0, day01) (0, day02) (0, day03) (0, day04)]
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