[MATH-574] Remove the restriction that the two vectors in RealVector.outerProduct have to be of the same size.

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2, 3.0
• Fix Version/s: 3.0
• Labels: matrix vector

Environment

All.

• Assignee: Unassigned
• Reporter: Emile Ben Nasatyr
• Created: 12/May/11 15:12
• Updated: 24/Mar/12 16:16
• Resolved: 17/May/11 22:20

Description

Currently RealMatrix M = x.outerProduct throws an exception if x and y are different sizes. This is as documented in the Javadoc but not what one expects mathematically (see e.g. http://en.wikipedia.org/wiki/Outer_product) - the vectors can be any size.

So please remove the restriction that the vectors should be the same size, as this doesn't seem to be necessary either mathematically or in terms of the implementation.