<ul>
<li>If it is necessary to convert a linear mesh to quadratic or a quadratic
mesh to linear. **Convert to bi-quadratic** option does the same as
- **Convert to quadratic** except for that QUAD9 elements are created
- instead of QUAD8, and HEXA27 elements are created instead of
- HEXA20. Note that the choice is available only if the selected mesh
- (or sub-mesh) contains both quadratic and linear elements, else the
+ **Convert to quadratic** except for that TRIA7, QUAD9 and HEXA27
+ elements are created instead of TRIA6, QUAD8, and HEXA20 elements
+ respectively. Note that the choice is available only if the selected
+ mesh (or sub-mesh) contains both quadratic and linear elements, else the
direction of conversion is selected automatically.</li>
-<li>If it is necessary to place medium nodes of the quadratic mesh on the
-geometry (meshed object). This option is relevant for conversion to
-quadratic provided that the mesh is based on a geometry (not imported from file).</li>
+<li>If it is necessary to place **medium nodes** of the quadratic mesh **on the
+ geometry** (meshed object). This option is relevant for conversion to
+ quadratic provided that the mesh is based on a geometry (not imported
+ from file).</li>
</ul>
\image html image156.gif
