[GAP Forum] Sqrt for the cyclotomic numbers

[Palcoux Sebastien]

Hi,
Is it possible to extend the function Sqrt on the cyclotomic numbers?
See below what's happen if we try, for example, with the number E(5) :
gap> Sqrt(E(5));Error, no method found! For debugging hints type ?Recovery from NoMethodFoundError, no 1st choice method found for `Sqrt' on 1 arguments called from<function>( <arguments> ) called from read-eval-loopEntering break read-eval-print loop ...you can 'quit;' to quit to outer loop, oryou can 'return;' to continuebrk>
Best regards,Sebastien Palcoux