|MATLAB Release Notes|
Mathematics Upgrade Issues
The issues involved in upgrading from MATLAB 6.1 to MATLAB 6.5, in terms of mathematics features, are discussed below.
Singular Triangular Matrix Division
The result of dividing a singular lower or upper triangular matrix by any other matrix, using either left (
\) or right (
/) division may change. Previously, for singular square matrices
A for which
rcond(A) = 0, the result was always a matrix of
This change is a result of performance improvements described in Mathematics Features.
In MATLAB Version 6.5,
Previously, the result was
In MATLAB 6.5, a zero matrix is treated as a singular triangular matrix.
Previously the result was
|Development Environment Upgrade Issues||Programming and Data Types Upgrade Issues|