Oh, you should use sympy.physics.vector.init_printing()
If you want the dot notation in latex in your notebooks. Jason moorepants.info +01 530-601-9791 On Wed, Aug 13, 2014 at 10:23 PM, Jason Moore <moorepa...@gmail.com> wrote: > You can subclass a printer and have it do what you want. You can see here: > > > https://github.com/sympy/sympy/blob/master/sympy/physics/vector/printing.py#L145 > > where we subclass the latex printer and get the \dot{} notation for > derivatives, for example. There is also an example here: > > http://docs.sympy.org/dev/modules/printing.html > > of subclassing to do custom derivative printing. Maybe exactly what you > want. > > The LagrangesMethod in sympy.physics.mechanics works with the classes > available in that package (RigidBody, ReferemceFrame, etc). The other one > is more basic math. So if you want to write all the math yourself then > maybe the later is preferable, but if you want to use the objects in > sympy.physics.mechanics to build up a rigid body system and find the > equations of motion, the use the former. > > > Jason > moorepants.info > +01 530-601-9791 > > > On Wed, Aug 13, 2014 at 10:13 PM, Rathmann <rathmann...@gmail.com> wrote: > >> Hello, >> >> I have been watching the lectures of Susskind's "Theoretical Minimum" >> course, and using Sympy with IPython notebook to take notes, and work >> through some of the examples. >> >> Sympy is serious overkill for this purpose, but overall it has been >> working well. >> >> A couple of questions: >> >> - What is the best way to deal with dynamics variables and the dot >> convention for printing? (In physics, the first time derivative of x is >> often written as \dot{x} instead of dx/dt.) Is there an easy way to >> get IPython notebook to print dynamics variables using the dot convention, >> and still give the nice LaTeX-rendered equations? If I use vprint (from >> physics.vector), I get the variables with primes, but just a text >> rendering of the equations. >> - I notice sympy.physics.mechanics.LagrangesMethod and >> sympy.calculus.euler.euler_equations both implement Lagrangian mechanics. >> Is one of these more "official" than the other? Both seem to work for >> the >> very simple examples I have tried. >> >> Thanks >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sympy" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sympy+unsubscr...@googlegroups.com. >> To post to this group, send email to sympy@googlegroups.com. >> Visit this group at http://groups.google.com/group/sympy. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/sympy/fe1737e3-3b19-40e5-8983-5d64bfad8e2f%40googlegroups.com >> <https://groups.google.com/d/msgid/sympy/fe1737e3-3b19-40e5-8983-5d64bfad8e2f%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAP7f1AgeXG%3Dhz5XKB9z5aKBsY3wshJYRfcEWMZH9q_aJebQRfw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
