More-than-basic maths

Hi,

I can't work out how to do more complex maths (like logarithms, trig
functions, etc) in XSL.  Is it possible?  If not, is there any other tool
I can use in an xml pipeline?  Is the only option writing SAX or DOM code
in some non-dedicated programming language?

(I'm generating plots from XML data via XSL to SVG)

Thanks,
Andrew


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