sequence(element) fails on list from CAS

hawe shared this problem 2 years ago

Not a Problem

sequence or function fails Element 2,3 of ROOTS

It seems to me that Element has a problem to retrieve special complex numbers?

c(x):=x^(3) + (((-3) + (2 * ί)) * x^(2)) + (((-2) - (6 * ί)) * x) - 9 - (3 * ί) makes correct m1 list

/zgUhwCMSxxCQRwCMCpxCAVxCMCoxCEUxCEAoxKHUBCHAIxKHEJBHAIwKnEIBXEIwKjEIRSmaTLGGGOGnd+IQwAAkjgEACCJQwAAkjgEACCJQwAAkjgEACCJQwAAkjgEACCJQwAAkjgEACBdxuEnLMnZzbeRLSYAAAAASUVORK5CYII=

Sequence-Command in CAS works correct!

Files: SequenceFromCAS.ggb

The same problem

Comments (2)

Michael Borcherds ● 2 years ago

 {3, -2 + ί, -1 - ί}

is mixed element types (numbers / complex) so won't work with Sequence in the Algebra View. See https://wiki.geogebra.org/e...

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hawe ● 2 years ago

Hm,

then i want to forward the error to csolutions - should not create mixed lists when returning complex solutions?

it is OK to create the list in CAS?

BTW:

SelectedElement( <List> ) has also problems with complex numbers - or is this the same mix-objects-problem.

Refering to https://www.geogebra.org/m/enzfzesg

after some work the 3D window often freeze

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