[Axiom-developer] [#173 (1 . failed) cannot be coerced to mode (Integer) in TriangularMatrixOperations] what's wrong with that?

[unknown]

Changes 
http://page.axiom-developer.org/zope/mathaction/1731FailedCannotBeCoercedToModeIntegerInTriangularMatrixOperations/diff
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>From the package:
++ This package provides functions that compute "fraction-free"
++ inverses of upper and lower triangular matrices over a integral
++ domain. By "fraction-free inverse" we mean the following:
++ given a matrix B with entries in R and an element d of R such that
++ d* inv(B) also has entries in R, we return d * inv(B).

So if you enter B and d such that d * inv(B) does not have entries in R, it is 
an error. 
The package is for internal use (that why it is not exposed) 
where d is always divisible by the determinant of B.
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