Empty one dimensional arrays are printed but no empty two dimensional array in console.

Text Mode

empty Matrix not printed

(1) -> )set output algebra on
 

)set output tex off

empty()$Vector(INT)

   (1)  []

empty()$Matrix(INT)

   (2)  []

LaTeX mode

empty Matrix causes error

)set output algebra off
 

)set output tex on

empty()$Vector(INT)

(1)

empty()$Matrix(INT)

(2)

Category: general => Axiom User Interface

I investigated a little further:

)se ou tex off
 

)se ou al on

(matrix [[1,2]])::OUTFORM pretend SEX

   (5)  (MATRIX () (ROW 1 2))

(empty()$Matrix INT)::OUTFORM pretend SEX

   (6)  (BRACKET (AGGLST))

matrix []

   (7)  matrix

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.

matrix [[]]

   (8)  matrix
              NONE

does indeed not make any sense at all.

Status: open => closed