65 Reputation

One Badge

2 years, 190 days
Universidade Federal do Espírito Santo

MaplePrimes Activity

These are replies submitted by deniscr


As always, perfect!

Thank you very much!


You are absolutely right! Thank you very much!


You are completely right! Thanks a lot for your help!



Got it! I would like to thank you for your help. I think there is a bug in 2-D math input

See ya!


I tried to use your tip but it don't worked.


Helped me a lot! Thanks for your help!

@Preben Alsholm 




@vv You are amazing! Thank you very much!

I would like to thank everyone for their support!

@Rouben Rostamian  Sorry! Here is my code:


I know de matrix U but I can't to find the matrix U


Sorry, I didn't see your comment! I put here the matrices C and M.


Thanks for your help!

I can't apply your suggestion to my problem. The matrices M and C are the following


By the way, I know the matrix U

The point is: I need to reproduce this case to apply in another case.


Thanks for your answer!

Unfortunately, the matrix U is a unknown matrix. It isn't numeric matrix.


Thanks for your answer!

I use Maple 2017 and still happening,

It changes when I do the command g_[line_element] in package Physics. Later this change causes some problem in the rest calculations.


You are amazing! Thanks! I will test!



First of all, thanks for your reply.

I'd like to say that I know the Physics package and I think it's fantastic. I have done a great deal in him, especially in General Relativity. I have also followed the launch of Maple 2017 and its news!

I can say that I know the commands that you have indicated.

Initially, I tried to use the Physics package, but in it I can not reproduce a certain result.

Starting from this metric

I need to get this



With this definition

Unfortunately, the Physics package does not reproduce these results in the same way. So I had to resort to the grtensor, but I can not define all the components of the tensor.

1 2 Page 1 of 2