b9-11d0-b93a-00c04fc99f9e">
        <PARAM NAME="Keyword" VALUE="basics">
        <PARAM NAME="Keyword" VALUE="co-ordinate">
</OBJECT>

<A NAME="idh_coordsystem"></A>

<H2>Further details about the co-ordinate system</H2>
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<P>Every EUKLID DynaGeo drawing contains a <B>cartesian co-ordinate system</B> with a unit length of 1 cm. The co-ordinate system may moved around by <A HREF="JavaScript:HHCTRL.TextPopup(pop_drag,popfont,10,10,-1,-1)" Title="Click to see a definition!">dragging</A> the origin with th