[sympy] Quaternions

2009-04-18 Thread projetmbc
Hello, is-it possible to use quaternions with sympy ? Christophe. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com To unsubscribe from this g

[sympy] Quaternions with non-commutative arguments

2019-09-03 Thread Maxence Mayrand
The current implementation of quaternions (sympy/algebras/quaternion) requires that the arguments are commutative expressions. But I can't see a good reason for this limitation; quaternions with non-commutative arguments make perfect sense and do arise in some areas of mathematics. For example,