<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">mathematics</topic></authority><related type="narrower"><topic>statistics</topic></related><related type="narrower"><topic>algebra</topic></related><related type="narrower"><topic>applied mathematics</topic></related><related type="narrower"><topic>arithmetic</topic></related><related type="narrower"><topic>calculus</topic></related><related type="narrower"><topic>geometry</topic></related><related type="narrower"><topic>trigonometry</topic></related><related type="narrower"><topic>mathematical physics</topic></related><related type="narrower"><topic>metrology</topic></related><related type="other"><topic>mathematical concepts</topic></related><related type="other"><topic>mathematicians</topic></related><related type="broader"><topic>science</topic></related><variant type="other"><topic>mathematical</topic></variant> <note xml:lang="en"><![CDATA[ Science of numbers, magnitudes, quantities expressed symbolically, and forms and figures, including their interrelationships and the operations performed on them. ]]></note></mads>