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### xquery math: functions in oxygen editor

Posted: **Thu Dec 01, 2011 7:09 pm**

by **cmcenearney**

Hi,

Does anyone know how to use math: functions in Editor?

I've got Saxon-EE checked, along with "Enable Xquery 1.1 support" but no luck.

Running XML Editor 12.2, build 2011053115

Many thanks,

Colin

### Re: xquery math: functions in oxygen editor

Posted: **Mon Dec 05, 2011 6:18 pm**

by **sorin_ristache**

Hello,

Saxon has a

limited set of mathematical functions available for XQuery processing. Please look at the following example of using the

**sin** function:

Code: Select all

`xquery version "1.0";`

declare namespace math="http://www.w3.org/2005/xpath-functions/math";

<test>

{math:sin(1)}

</test>

Regards,

Sorin

### Re: xquery math: functions in oxygen editor

Posted: **Mon Dec 05, 2011 6:53 pm**

by **cmcenearney**

Thanks!

I was hoping to use math:pow, so that's too bad, but great to know about this resource.

And I guess creating a function for this is good for my brain anyway.

declare function local:exponentiate

($base as xs:double?, $power as xs:double?) as xs:double?

{

if ($power gt 1)

then $base * (local:exponentiate(($base),($power - 1)))

else $base

};

### Re: xquery math: functions in oxygen editor

Posted: **Thu Jan 24, 2013 9:59 pm**

by **wvision70**

For the records : finally with XPath 3.0 the math:pow(x,n) function is supported in Oxygen using the Saxon 9.4 processor, as well as other trig math functions.

You can test it in the XPath toolbar.

http://www.w3.org/TR/xslt-30/
Best Regards,

Andy.