Mathematica and MatLab Differences

[Philosophaie]

I am going thru the same itterations for solving a Matrix in both Mathematica and MatLab. MatLab gives a different answer.

I am given a matrix:

$$\Gamma^{i}_{jk} or \Gamma(i,j,k)$$ that is correct.

The Equation for the resultant matrix is:

$$R^{i}_{jkl}=\Gamma(i,k,r)*\Gamma(r,j,l)-\Gamma(i,l,r)*\Gamma(r,j,k)+d/dx^{k}\Gamma(i,j,l)-d/dx^{l}\Gamma((i,j,k)$$

with starting from summing the r then i and j and k and l.

I am trying to do the same in MatLab as in Mathematica but cannot get them to agree.

 

[Philosophaie]

I answered it for myself. Matlab didn't simplify the whole way. I needed to use the simple command to simpllify the whole riemann matrix to get the same results as Mathematica.

 

[oswaler]

I understand your frustration with trying to solve a matrix in both Mathematica and MatLab and getting different answers. While both programs are commonly used for mathematical and scientific computations, there are some key differences between them that could lead to discrepancies in results.

One major difference is that Mathematica is a symbolic computing software, while MatLab is a numerical computing software. This means that Mathematica can manipulate and solve equations symbolically, while MatLab requires numerical input and calculations. This could result in different approaches and methods being used to solve the same problem, leading to different outcomes.

Additionally, Mathematica and MatLab have different built-in functions and algorithms for solving matrices. It is possible that one program may have a more efficient or accurate method for solving a specific matrix, resulting in a different answer.

I would recommend carefully checking your input and equations in both programs to ensure they are identical, as even small differences can lead to different results. You may also want to consult the documentation or reach out to the support teams for both Mathematica and MatLab for further assistance in troubleshooting the discrepancies.

In conclusion, while Mathematica and MatLab are both powerful tools for scientific computations, it is important to be aware of their differences and understand how they may impact your results. With careful attention and possibly some assistance, you should be able to determine the source of the discrepancies and obtain consistent results in both programs.