Re: [Math] DS: An alternative to DerivativeStructure

2013-09-19 Thread Ajo Fod
Hi Luc, I'll work on tests when I get a chance. RealFieldElement has a lot of functions so its a bit out of my way. Cheers, -Ajo On Thu, Sep 19, 2013 at 10:58 AM, Luc Maisonobe wrote: > Hi Ajo, > > Le 19/09/2013 16:26, Ajo Fod a écrit : > > Created: > https://issues.apache.org/jira/browse/MA

Re: [Math] DS: An alternative to DerivativeStructure

2013-09-19 Thread Luc Maisonobe
Hi Ajo, Le 19/09/2013 16:26, Ajo Fod a écrit : > Created: https://issues.apache.org/jira/browse/MATH-1036#comment-13771933 This looks promising. Would it be possible to have this class implement RealFieldElement and to have some unit tests? best regards, Luc > > > > On Thu, Sep 19, 2013 at 1

Re: [Math] DS: An alternative to DerivativeStructure

2013-09-19 Thread Ajo Fod
Created: https://issues.apache.org/jira/browse/MATH-1036#comment-13771933 On Thu, Sep 19, 2013 at 12:29 AM, luc wrote: > Le 2013-09-19 08:26, Ajo Fod a écrit : > >> Hello, >> > > Hi Ajo, > > > >> Ran into problems with DerivativeStructure today. It requires a lot of >> memory with 6000 or so i

Re: [Math] DS: An alternative to DerivativeStructure

2013-09-19 Thread luc
Le 2013-09-19 08:26, Ajo Fod a écrit : Hello, Hi Ajo, Ran into problems with DerivativeStructure today. It requires a lot of memory with 6000 or so independent variables. I poked around and found it the problem starts with the number of DSCompiler objects instantiated. Yes, this is a know

[Math] DS: An alternative to DerivativeStructure

2013-09-18 Thread Ajo Fod
Hello, Ran into problems with DerivativeStructure today. It requires a lot of memory with 6000 or so independent variables. I poked around and found it the problem starts with the number of DSCompiler objects instantiated. Given this and my earlier observation that in sparse derivative trees, the