Items tagged with record record Tagged Items Feed

Remember tables

December 09 2012 by Mac Dude 205 Maple

I have a procedure which accepts arguments of a (created by myself) type which are records, like so:

Subs:=proc(eqn::seq(equation),elemt::Element,$);
...

Here "Element" is  type I have defined; it is a record with certain fields present.

My question: will this work with option remember? I have the procedure sort-of working without the remember option, but I need to make it work recursively (the Element record can have fields which contain names of other records of type Element...

Hi; I am working on a package where the data mostly come in Maple records with a varisble number of fields with different names. At least one field in each record has a 6 by 6 matrix, the expressions of which involve the values associated with at least some of the other fields.

Occasionally I have the need to, say, apply a function to each of these fields. E.g., I want to substitute a value for a specific name; this name may show up in several fields and also will show up in the matrix.

In matlab, a function is returned a structure H, say H.a, H.b, ...

In maple, I want to call this matlab function, but what returned to maple is a Record:

 

Hs:= getvar("H");

Hs:= Record(a=..., b=..., ...);

 

So how can I convert this record to a normal maple array? so I can access to each element by Hs[1]. 

 

Thank you

Kyle

Here are 30 all-time men's best 100m  (see http://en.wikipedia.org/wiki/100_metres
 and  http://www.alltime-athletics.com/m_100ok.htm )
        1      9.58       +0.9    Usain Bolt          16.08.2009

Page 1 of 1