Axiom Computer Algebra System - Bugs: bug #9968, problems with exponentiation of...
You are not allowed to post comments on this tracker with your current authentication level.
bug #9968: problems with exponentiation of matrices
Submitter: | Martin Rubey <kratt6> | ||
Submitted: | Wed 11 Aug 2004 10:35:11 AM UTC | ||
Category: | interpreter | Severity: | 3 - Normal |
Item Group: | code bug | Status: | None |
Privacy: | Public | Assigned to: | None |
Originator Name: | kratt6 | Open/Closed: | Open |
Release: | 9.6.2004 | Reproducibility: | None |
Fixed Release: | |||
Error message: | There should be an error message, instead a nonsense-result is spit out... |
||
Example of code trigerring the bug: | matrix([[0,0],[0,0]]) ^ 0.1
|
||
Internal cause: |
|
No files currently attached
Depends on the following items: None found
Items that depend on this one: None found
Carbon-Copy List
There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.
Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2008-11-25 | axiom | Example of code trigerring the bug | matrix([[0,0],[0,0]]) ^ 0.1 matrix([[0,0],[0,0]]) ^ x | ![]() |
matrix([[0,0],[0,0]]) ^ 0.1 matrix([[0,0],[0,0]]) ^ x |
(1) -> matrix([[0,0],[0,0]]) ^ 0.1
(1) 0.0
Type: Float
(2) -> matrix([[0,0],[0,0]]) ^ x
x
(2) 0
Type: Expression Integer
but (fortunately)
(3) matrix([[0,0],[0,1]]) ^ 0.1
There are 4 exposed and 0 unexposed library operations named ^
having 2 argument(s) but none was determined to be applicable.
Use HyperDoc Browse, or issue
)display op ^
to learn more about the available operations. Perhaps
package-calling the operation or using coercions on the arguments
will allow you to apply the operation.
Cannot find a definition or applicable library operation named ^
with argument type(s)
Matrix Integer
Float
Perhaps you should use "@" to indicate the required return type,
or "$" to specify which version of the function you need.
So it seems to happen only with the zero matrix.