<?xml version="1.0" encoding="utf-8"?>
<!-- Created with Liquid XML Studio 1.0.8.0 (http://www.liquid-technologies.com) -->
<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:complexType name="SigmaTauCurve">
    <xs:sequence>
      <xs:element minOccurs="2" maxOccurs="unbounded" name="SigmaTauPoint">
        <xs:complexType>
          <xs:attribute name="Sigma" type="xs:double" use="required" />
          <xs:attribute name="Tau" type="xs:double" use="required" />
        </xs:complexType>
      </xs:element>
    </xs:sequence>
  </xs:complexType>
</xs:schema>