<para> | |
General information about built-in geometric functions: | |
Built-in geometric functions operate component-wise. The description | |
is per-component. <type>float<replaceable>n</replaceable></type> is | |
<type>float</type>, <type>float2</type>, <type>float3</type>, or <type>float4</type> and | |
<type>double<replaceable>n</replaceable></type> is <type>double</type>, <type>double2</type>, | |
<type>double3</type>, or <type>double4</type>. The built-in geometric functions are | |
implemented using the round to nearest even rounding mode. | |
</para> | |
<para> | |
The geometric functions can be implemented using contractions such | |
as <citerefentry><refentrytitle>mad</refentrytitle></citerefentry> or | |
<citerefentry><refentrytitle>fma</refentrytitle></citerefentry>. | |
</para> | |
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