[MATH-827] Replace class "LegendreGaussIntegrator" with "IterativeLegendreGaussIntegrator" class

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.0
• Labels: api-change
• Assignee: Gilles Sadowski
• Reporter: Gilles Sadowski
• Created: 18/Jul/12 16:26
• Updated: 24/Feb/15 22:16
• Resolved: 24/Feb/15 22:16

Description

The "LegendreGaussIntegrator" class (in package "o.a.c.m.analysis.integration") has a misleading name. Internally, it uses the Legendre-Gauss quadrature rule on sub-intervals of the integration range but, additionally, it performs an iterative procedure to automatically determine the number of sub-intervals over which the rule will be successively applied.

The strict Gauss-Legendre quadrature scheme has now been implemented (cf. MATH-797) in package "o.a.c.m.analysis.integration.gauss".

I thus propose to:

1. Deprecate "LegendreGaussIntegrator" in 3.1.
2. Create a new "IterativeLegendreGaussIntegrator" class that will perform the same procedure as "LegendreGaussIntegrator" but will internally use the classes in package "o.a.c.m.analysis.integration.gauss" to perform the Gauss-Legendre quadrature part.
3. Remove "LegendreGaussIntegrator" in 4.0.