Hi, I'm running
SageMath version 9.3, Release Date: 2021-05-09 on Mac OS, but the bug I encountered also occurred on a Windows machine. The code R = RootSystem(['D',4,1]) L = R.weight_lattice(extended = True) R.root_space().positive_real_roots() L.positive_real_roots()[12] leads to a long error message, the final line of which is TypeError: unsupported operand parent(s) for *: 'Rational Field' and 'Extended weight lattice of the Root system of type ['D', 4, 1]' Note that the positive root [12] is the first one at grade 1. One can get around the bug by accessing the positive roots in L first, but it would still be nice if this could be fixed. Thanks. Amir -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/aca6ba3c-bc8a-40b9-8a85-1cb2ce187ce8n%40googlegroups.com.
