Questions on the linear algebra functionality of Mathematica.

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-1
votes
2answers
152 views

How to compute LLL-reduce basis from lattice in Mathematica? And factor N

original article Clear. What is k? What is suitably large? I already have large numbers. I tried this WITHOUT k: ...
-1
votes
1answer
48 views

Graphing a vector [duplicate]

I have a vector (in physic) designated asF1=250cos(60)i+250cos(60)j+250cos(45)k, and i would like to see it in a 3D graphic with the axis centered at the origin, after what i would include other ...
-2
votes
1answer
112 views

$SU(4)$ Structure constants in mathematica

How can I write a mathematica function which will output arbitrary structure constants of SU(4)?
-2
votes
0answers
56 views

How speed the calculatation of the inverse of an upper triangular matrix

I have found the inverse of an upper triangular matrix by substitution using the "for" command, but it works very slowly when the upper triangular matrix is big. Example: If 686 is matrix's ...
-4
votes
1answer
426 views

Solving Det[matrix] == 0 with an 8 x 8 matrix [closed]

I want to solve the equation Det[matrix] == 0 which came from the consistency of solutions of a set of 8 equations. This matrix has two constants λ and μ and two variables $P$ and $q$. I want to get ...