[sage-support] Re: Free Algebra with symbolic coefficients

2014-09-09 Thread Chris Thron
) Thanks again for your help. On Sunday, September 7, 2014 5:25:31 PM UTC-5, Nils Bruin wrote: > > On Sunday, September 7, 2014 10:28:02 AM UTC-7, Chris Thron wrote: >> >> (1) I have expressions like curl*H - c^(-1)*d_t*D, where curl and d_t >> express derivatives.

[sage-support] Free Algebra with symbolic coefficients

2014-09-07 Thread Chris Thron
HI, I'm trying to write a program that converts electromagnetic equations from CGS to MKS units. I've run into the following issues: (1) I have expressions like curl*H - c^(-1)*d_t*D, where curl and d_t express derivatives. In the process of conversion, sage switches the order and outputs: H