The calculation of complex numbers in Algebra is not correct: z_{2} = ί sqrt(-1)→ ?[br]I would expect as a result z_{2}=-1+0*ί .[br]Move the slider [b]a[/b] to see the calculation results. Everything works correctly in CAS.[br]See the Geogebra [url=https://www.reddit.com/r/geogebra/comments/1k35f1x/the_calculation_of_complex_numbers_in_algebra_is/]Forum[/url].[br][url=https://www.reddit.com/user/mike_geogebra/]mike_geogebra[/url][br][br]sqrt(-1) is (necessarily) undefined in the AV. [b]Try sqrt(-1+0i) !!!![/b][br][br]