The second argument to LambertW lets you specify the branch. In this case, the -1 branch gives the other real root:
In [28]: N(-LambertW(-log(2)/8, -1)/log(2)) Out[28]: 5.44490755461021 Aaron Meurer On Tue, Apr 19, 2016 at 1:21 PM, Bill Bell <[email protected]> wrote: > For instance, there are two roots to the equation for which > N(-LambertW(-log(2)/8)/log(2)) is a solution but when I enter this sympy > yields just 0.137499628779701. > > What can I do to obtain the second value? > > TIA. > > -- > 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 https://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/f7ba9eca-010f-490b-ae88-41e109b82abe%40googlegroups.com. > 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAKgW%3D6KgkEjNxY6U2NuOP8-Ab_nFZHW9TnmVVtMOOHcncxCePA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
