basic data types of numarical data

The basic data types of numerical data is xsd:double,
because it can represent integers. OK?

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<xsd:complexType name="qtyType">
 <xsd:attribute name="value" type="xsd:double" default="0"/>
 <xsd:attribute name="base" type="xsd:double" default="1"/>
 <xsd:attribute name="unit" type="xsd:string"/>
</xsd:complexType>
-- 
Yasu Nissy (Yasuyuki NISHIOKA), Dr.Eng.
MIT, 41-211
77 Massachusetts Ave
Cambridge MA 02139
Phone 617-452-2982, Fax 617-253-2249
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