On 30/06/16 02:28, Waldek Hebisch wrote:
1) Printing [] for matrix with zero rows is better than current
state. However for matrices with zero columns your code
looses information about number of rows.
2) You may pass list to 'matrix' in OutputForm and the results
should be as close as possible. Since you are loosing
info about number of columns you can change 'matrix' in
OutputForm so that empty l gives '[]'.
Perhaps it should work like this:
(1) -> b : Matrix(Integer) := new(3,0,0)
+_+
| |
(1) |_|
| |
+_+
Type:
Matrix(Integer)
(2) -> c: Matrix(Integer) := new(0,3,0)
(2) [_ _ _]
Type:
Matrix(Integer)
That is: choose some character like '_' or '.' or '#' to stand for
nothing as opposed to zero.
MartinB
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