[MATH-935] DerivativeStructure.atan2(y,x) does not handle special cases properly

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.1.1
• Fix Version/s: 3.2
• Assignee: Unassigned
• Reporter: Luc Maisonobe
• Created: 15/Feb/13 08:05
• Updated: 07/Apr/13 09:19
• Resolved: 15/Feb/13 08:22

Description

The four special cases +/-0 for both x and y should give the same values as Math.atan2 and FastMath.atan2. However, they give NaN for the value in all cases.