Hi! A student and I are putting together a little website that uses sympy and R for practice for the Probability Actuary Exam
On Saturday, November 9, 2013 6:59:39 AM UTC-6, Matthew wrote: > > Hi Erin, > > I'd be interested in hearing more about your application. We've thought > about adding moment generating functions to sympy.stats but couldn't come > up with motivating use cases. > > Matt > On Nov 8, 2013 11:58 PM, "Aaron Meurer" <[email protected] <javascript:>> > wrote: > >> Just use symbols(). var() is only for interactive use. >> >> Aaron Meurer >> >> On Nov 8, 2013, at 8:56 PM, Erin Hodgess <[email protected]<javascript:>> >> wrote: >> >> Thank you. >> >> My ideal would be something like: >> >> x = var('x') >> t = symbols('t') >> >> y = exp(-x)*exp(t*x) >> y >> exp((t-1)*x) >> >> I'm thinking about moment generating functions. >> >> Thanks! >> Erin >> >> >> On Friday, November 8, 2013 9:50:06 PM UTC-6, Aaron Meurer wrote: >>> >>> Take a read of >>> http://docs.sympy.org/latest/tutorial/gotchas.html#symbols >>> (and I recommend the rest of that tutorial as well). You need to >>> define t first. Probably you just want to add >>> >>> t = symbols('t') >>> >>> somewhere to your script. >>> >>> Aaron Meurer >>> >>> >>> >>> On Fri, Nov 8, 2013 at 6:48 PM, Erin Hodgess <[email protected]> >>> wrote: >>> > Hello! >>> > >>> > I would like to use a letter as a constant in >>> integration/differentiation >>> > problems but I am having some trouble. >>> > >>> > For instance, I would like to have >>> > exp(t*x) >>> > >>> > But when I do that, I get "t is not defined". >>> > >>> > This is in Python 2.7.5 >>> > >>> > Thanks for any help! >>> > >>> > Sincerely, >>> > Erin >>> > >>> > -- >>> > 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 [email protected]. >>> > To post to this group, send email to [email protected]. >>> > Visit this group at http://groups.google.com/group/sympy. >>> > For more options, visit https://groups.google.com/groups/opt_out. >>> >> -- >> 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 [email protected] <javascript:>. >> To post to this group, send email to [email protected] <javascript:> >> . >> Visit this group at http://groups.google.com/group/sympy. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> -- >> 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 [email protected] <javascript:>. >> To post to this group, send email to [email protected] <javascript:> >> . >> Visit this group at http://groups.google.com/group/sympy. >> For more options, visit https://groups.google.com/groups/opt_out. >> > -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
