matrix-multiplication

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How to multiply numeric array values of similar keys in Php?

$a = array (\'x\' => 2, \'y\' => 3); $b = array (\'y\' => 2, \'z\' =>开发者_如何学Python; 3);[详细]

2023-01-23 22:38 分类：问答
Multithreaded Matrix Multiply Help in C

I have a Matrix multiply code that does matrix multiply by the following Where Matrix A * Matrix B= Matrix C[详细]

2023-01-23 07:20 分类：问答
Programming problem - Game of Blocks

maybe you would have an idea on how to solve the following problem. John decided to buy his son Johnny some mathematical toys. One of his most favorite toy is blocks of different colors. John has de[详细]

2023-01-22 17:05 分类：问答
Why is the performance of these matrix multiplications so different?

I wrote two matrix classes in Java just to compare the performance of their matrix multiplications. One class (Mat1) stores a double[][] A member where row i of the matrix is A[i]. The other class (Ma[详细]

2023-01-22 07:06 分类：问答
Bad memory allocation C++ for a vector

I get std_bad_alloc error in the following code. It seems the problems is when I add the matrix to the vect开发者_运维技巧or, the program crashes when I get to that line in the debugger. The problem i[详细]

2023-01-20 05:09 分类：问答
how does multiplication differ for NumPy Matrix vs Array classes?

The numpy docs recommend using array instead of mat开发者_如何学Crix for working with matrices. However, unlike octave (which I was using till recently), * doesn\'t perform matrix multiplication, you[详细]

2023-01-19 10:17 分类：问答
Float and double precision in c#

Having a bit of a problem here on a matrix multiplication code. I seem to lose precision on large matrices multiplications (my code runs fine on small matrices).[详细]

2023-01-17 22:26 分类：问答
Java Matrix processing time

I need sim开发者_JAVA技巧ple opinion from all Guru! I developed a program to do some matrix calculations. It work all fine with[详细]

2023-01-13 04:59 分类：问答
Translation and rotation matrix

Does anyone have code开发者_JAVA百科 to perform the matrix calculation for translation and rotation of a point I. 2D, please?[详细]

2023-01-13 03:37 分类：问答
Matrix multiplication with Numpy

Assume that I have 开发者_运维百科an affinity matrix A and a diagonal matrix D. How can I compute the Laplacian matrix in Python with nympy?[详细]

2023-01-13 02:06 分类：问答