Oscar Castillo-Felisola

According to the latest manual there are two packages related to LaTeX and TeX: RLFI and TRI. But their documentation is not as clear (for newbies, like myself) as it could be. I'm interested in saving the output of a calculation in LaTeX form. Assuming that it is possible: Can someone provide an example of how to do it?

Thank you for the suggestion Eberhard! An excellent trick!

Thank you Arthur for the detailed and complete answer. BTW, great suggestion the use of a and AA. Cheers.

I would expect the result to be 1. Imagine you take the function f(x) defined and continuous over the whole real line. Now, define g as the function g = f for x in R-{0}. The limit g(x=>0) is well-defined and it is precisely f(0).

Dear community, I've noticed that the package EXCALC does not distinguish between the variables a and A. I'm running Reduce-svn5758 in Manjaro Linux. Note that in the following code A is defined as a 0-form, while the a (in the argument of the exponential function) should be treated as a constant because it is not declared. MWE load_package excalc; off precise; on factor; % Definitions % spacedim 5; indexrange 0,1,2,3,4; pform phi = 0, {om(m,n),A} = 1, {curv(m,n),rcurv(m,n),tor(m)} = 2; index_symmetries...

Hi Eberhard, Could you please provide an example on how to obtain the set of PDEs? Thank you. Oscar

Hi community, I'm trying to use the package EXCALC to calculate the curvature of a five-dimensional space. I'd like to consider a component of the coframe as coframe e(0) = exp(a*phi) * d t, e(1) = exp(a*phi) * d x, e(2) = exp(a*phi) * d y, e(3) = exp(a*phi) * d z, e(4) = (A + d w) with signature -1,1,1,1,1; but it seems that the notation (A + d w) is not accepted, even though A is defined as a one-form. Is it simply not possible, or Am I doing something wrong? Thanks. Full code This example where...

Hi community, I'm trying to use the package EXCALC to calculate the curvature of a five-dimensional space. I'd like to consider a component of the coframe as coframe e(0) = exp(a*phi) * d t, e(1) = exp(a*phi) * d x, e(2) = exp(a*phi) * d y, e(3) = exp(a*phi) * d z, e(4) = (A + d w) with signature -1,1,1,1,1; but it seems that the notation (A + d w) is not accepted, even though A is defined as a one-form. Is it simply not possible, or Am I doing something wrong? Thanks. Full code load_package excalc;...