<?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_es">matemáticas</topic></authority><related type="narrower"><topic>estadística</topic></related><related type="narrower"><topic>álgebra</topic></related><related type="narrower"><topic>matemática aplicada</topic></related><related type="narrower"><topic>aritmética</topic></related><related type="narrower"><topic>cálculo</topic></related><related type="narrower"><topic>geometría</topic></related><related type="narrower"><topic>trigonometría</topic></related><related type="narrower"><topic>física matemática</topic></related><related type="narrower"><topic>metrology (traducció pendent)</topic></related><related type="other"><topic>conceptos matemáticos</topic></related><related type="other"><topic>matemáticos</topic></related><related type="broader"><topic>ciencia</topic></related> <note xml:lang="es"><![CDATA[ Ciencia de los números, magnitudes, cantidades expresadas simbólicamente y formas y figuras, incluyendo su interrelación y las operaciones realizadas en ellas. ]]></note></mads>