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last edited 7 years ago by test1 |
Edit detail for #169 Print empty two dimensional array (i.e. Matrix, TwonDimensionalArray ...) revision 5 of 6
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Editor: test1
Time: 2016/09/26 13:28:10 GMT+0 |
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changed: -(matrix [[1,2]])::OUTFORM::SEX -(empty()$Matrix INT)::OUTFORM::SEX (matrix [[1,2]])::OUTFORM pretend SEX (empty()$Matrix INT)::OUTFORM pretend SEX removed: -I believe that this shows that the bug is in the boot display routines. In OUTFORM we find:: - - matrix ll == - lv:\$ := [LIST2VEC\$Lisp l for l in ll] - CONS(eform MATRIX, LIST2VEC\$Lisp lv)\$Lisp changed: - -From kratt6 Thu Dec 20 11:25:48 -0800 2007 -From: kratt6 -Date: Thu, 20 Dec 2007 11:25:48 -0800 -Subject: -Message-ID: <20071220112548-0800@axiom-wiki.newsynthesis.org> - -Severity: wishlist => minor -
Empty one dimensional arrays are printed but no empty two dimensional array in console.
- Text Mode
- empty Matrix not printed
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)set output algebra on
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)set output tex off
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empty()$Vector(INT)
(1) []
Type: Vector(Integer)
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empty()$Matrix(INT)
(2) []
Type: Matrix(Integer)
- LaTeX? mode
- empty Matrix causes error
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)set output algebra off
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)set output tex on
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empty()$Vector(INT)
![\label{eq1}\left[ \right]](images/5593850768678758914-16.0px.png "\label{eq1}\left[ \right]") | (1) |
Type: Vector(Integer)
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empty()$Matrix(INT)
![\label{eq2}\left[ \right]](images/4639340934722937175-16.0px.png "\label{eq2}\left[ \right]") | (2) |
Type: Matrix(Integer)
property change --kratt6, Thu, 23 Jun 2005 06:32:24 -0500 reply
Category: general => Axiom User Interface
I investigated a little further:
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)se ou tex off
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)se ou al on
(matrix [[1,2]])::OUTFORM pretend SEX
(5) (MATRIX () (ROW 1 2))
Type: SExpression?
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(empty()$Matrix INT)::OUTFORM pretend SEX
(6) (BRACKET (AGGLST))
Type: SExpression?
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matrix []
(7) matrix
Type: Symbol
could be equivalent to empty()$Matrix INT. On the other hand, the interpreter has no way to determine the type of this matrix, so the error is probably OK.
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matrix [[]]
(8) matrix NONE
Type: Symbol
does indeed not make any sense at all.