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sqrt((-1)^(1/4) * x) #3070

Closed rtoy closed 3 months ago

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 12:44:33 Created by willisbl on 2004-06-13 19:12:35 Original: https://sourceforge.net/p/maxima/bugs/574

sqrt(sqrt(-1) * x) is okay (%i2) sqrt(sqrt(-1)*x); (%o2) SQRT(%I x)

but sqrt((-1)^(1/4) * x) isn't

(%i3) sqrt((-1)^(1/4)*x);

SIGN called on an imaginary argument: ...

(%i4) build_info();

Maxima version: 5.9.0.1cvs Maxima build date: 12:16 5/28/2004 host type: i686-pc-mingw32 lisp-implementation-type: Kyoto Common Lisp lisp-implementation-version: GCL 2.7.0

Barton

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 12:44:34 Created by robert_dodier on 2006-07-31 02:41:47 Original: https://sourceforge.net/p/maxima/bugs/574/#1b57

Logged In: YES user_id=501686

Observed in 5.9.3cvs.

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 12:44:38 Created by robert_dodier on 2006-07-31 02:41:48 Original: https://sourceforge.net/p/maxima/bugs/574/#f18c

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 12:44:41 Created by dgildea on 2008-03-08 00:28:31 Original: https://sourceforge.net/p/maxima/bugs/574/#c506

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 12:44:45 Created by dgildea on 2008-03-08 00:28:31 Original: https://sourceforge.net/p/maxima/bugs/574/#942c

Logged In: YES user_id=1797506 Originator: NO

Fixed in simp.lisp rev 1.52.

(%i11) sqrt((-1)^(1/4)*x); (%o11) sqrt((-1)^(1/4)*x)