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'''Karl Weierstrass''', in full '''Karl Theodor Wilhelm Weierstraß''' (1815 - 1897) was a [[German]] [[mathematician]], said to be one of the founders of the modern [[theory of functions]].<ref>[http://www.britannica.com/EBchecked/topic/638934/Karl-Weierstrass Encyclopedia Britannica: Karl Weierstrass]</ref>
== References ==
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[[Category:Mathematicians]]