* restriction matrices of the isotropic and all anisotropic refinement
* cases are implemented. If you are interested in the restriction matrices
* for isotropic refinement only, use the
- * isotropic_restriction_is_implemented function instead.
+ * isotropic_restriction_is_implemented() function instead.
*
* This function is mostly here in order to allow us to write more efficient
* test programs which we run on all kinds of weird elements, and for which
/**
* Return whether this element implements its restriction matrices for
* isotropic children. The return value also indicates whether a call to the
- * @p get_restriction_matrix function will generate an error or not.
+ * get_restriction_matrix() function will generate an error or not.
*
* This function is mostly here in order to allow us to write more efficient
* test programs which we run on all kinds of weird elements, and for which
/**
* Projection matrices are concatenated or summed up.
*
- * This flags decides on how the projection matrices of the children of the
- * same father are put together to one operator. The possible modes are
+ * These flags decide how the projection matrices of the children of the
+ * same parent are put together to one operator. The possible modes are
* concatenation and summation.
*
* If the projection is defined by an interpolation operator, the child