<category name="trigonemetric" id="2" parent="1"/>
<category name="arithmetics" id="3" parent="1"/>
<category name="filters" id="4" parent="0"/>
<category name="wishbone" id="5" parent="0"/>
<category name="trigonemetric" id="2" parent="1"/>
<category name="arithmetics" id="3" parent="1"/>
<category name="filters" id="4" parent="0"/>
<category name="wishbone" id="5" parent="0"/>