New version of DAVEfunc DTD 1.9b3

[Bruce Jackson]

I have just uploaded a new version of the DAVEfunc DTD to the DAVE-ML  
website, version 1.9b3, which adds a DSTO-suggested improvement. In  
addition to the DTD, the reference manual has an example of how to  
invoke the 'atan2' function and fixes documentation links.


   http://daveml.larc.nasa.gov/DTDs.html

The main change to the DTD is addition of 'discrete' as a supported  
interpolation method for tabular data, yielding a stair-step response  
from such a function. This came from a suggestion from Geoff Brian of  
Australia's DSTO.


The manual also contains an example of how to encode the 'atan2' four- 
quadrant arctangent function, which is not directly supported in  
MathML2 grammar.


-- Bruce


Bruce Jackson [EMAIL PROTECTED] Dynamic Systems  Control Branch
8 Langley Boulevard, MS 308   Research  Technology Directorate
NASA Langley Research CenterHampton, Virginia 23681
More info about DAVE-ML:   http://daveml.nasa.gov
Simulation standards discussion listserv mailto:simstds@larc.nasa.gov

Re: [fs] New version of DAVEfunc DTD 1.9b3

[Giovanni A. Cignoni]

The main change to the DTD is addition of 'discrete' as a supported  
interpolation method for tabular data, yielding a stair-step response  
from such a function. This came from a suggestion from Geoff Brian of  
Australia's DSTO.


Discrete interpolation is the method also known as nearest neighbor?
Being x in [a, b], f(x) is f(a) or f(b) depending on x being nearer 
to a or b. Correct?


Thanks in advance, ciao,
Giovanni Cignoni.