matrix
Recursive Table/Row Generator
I\'m having a tough time wrapping my head around the following situation. The best way to explain may be by example[详细]
2023-04-11 22:04 分类：问答OpenGL left-handed coordinate system
I\'m writing a 3D OpenGL app and I\'m having problems with my vertex translation matrix. Here\'s my vertex shader:[详细]
2023-04-11 21:47 分类：问答How to calculate percentage row in SSRS Tablix?
I am using SSRS 2008 and trying to calculate the following percentage in my tablix: sum(Fields!Last14Days_Ct.Value) / countdistinct(Fields!Client.Value)[详细]
2023-04-11 13:20 分类：问答log covariance to arithmetic covariance matrix function?
Is there a function that can convert a covariance matrix built using log-returns into a covariance matrix based on simple arithmetic returns?[详细]
2023-04-11 12:43 分类：问答What is supposed to happen with the transpose flag for glUniformMatrix with non-square matrices?
I encountered what seemed to me as strange behavior using glUniformMatrix4x3fv. Specifically when I give TRUE as for the transpose flag entire rows of my matrices are missing in my shader variable (an[详细]
2023-04-11 09:02 分类：问答python built-in function to do matrix reduction
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:[详细]
2023-04-11 03:52 分类：问答How do I rotate individual bones in XNA in a model?
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[详细]
2023-04-11 01:37 分类：问答finding nearest positive semi-definite correlation matrix
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[详细]
2023-04-10 17:57 分类：问答Maxima: Simplify matrix components
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[详细]
2023-04-10 16:13 分类：问答Mapping tuple (R, R) into ((R,R),R)?
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)][详细]
2023-04-10 11:02 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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