function setuparrays(help_title,help_text) {
help_title[0] = 'Short Hermann-Mauguin symbol';
help_text[0] = 'See Section 2.2.4.1 and Chapter 12.2';
help_title[1] = 'Schoenflies symbol';
help_text[1] = 'See Sections 12.1.2 and 12.2.2';
help_title[2] = 'Crystal class (point group)';
help_text[2] = 'See Section 10.1.1 and Chapter 12.1';
help_title[3] = 'Crystal system';
help_text[3] = 'See Section 2.1.2';
help_title[4] = 'Full Hermann-Mauguin symbol';
help_text[4] = 'See Section 2.2.4.1 and Chapter 12.3';
help_title[5] = 'Patterson symmetry';
help_text[5] = 'See Section 2.2.5';
help_title[6] = 'Space-group diagrams';
help_text[6] = 'These diagrams show one or more projections of the symmetry elements and a view of a set of equivalent points in the general position. The numbers and types of the diagrams depend on the crystal system. The diagrams and their axes are described in Section 2.2.6 and the symbols used for the symmetry elements are explained in Chapter 1.4. For monoclinic space groups see Section 2.2.16 and for orthorhombic settings see Section 2.2.6.4.';
help_title[7] = 'Origin of the unit cell';
help_text[7] = 'This line gives the site symmetry of the origin and its location with respect to the symmetry elements. See Section 2.2.7.';
help_title[8] = 'Asymmetric unit';
help_text[8] = 'One choice of asymmetric unit is given here. See Section 2.2.8. ';
help_title[9] = 'Symmetry operations';
help_text[9] = "For each point of the general position, the symmetry operation which transforms the initial point x, y, z into the point under consideration is given. The symbol describes the nature of the operation, its glide or screw component if present (given between parentheses), and the location of the corresponding symmetry element. The symmetry operations are numbered in the same way as the corresponding coordinate triplets of the general position. For centred space groups the same numbering is applied in each block, e.g. under `For (1/2, 1/2, 0)+ set'. See Section 2.2.9 and Part 11. " ;
help_title[10] = 'Generators selected';
help_text[10] = 'The set of generators chosen for this space group is given as a series of translations and numbers of general-position coordinates. The generators determine the sequence of the coordinate triplets in the general position and the sequence of the corresponding symmetry operations. See Section 2.2.10 and Section 8.3.5. ';
help_title[11] = 'Positions';
help_text[11] = 'The general Wyckoff position is given at the top, followed downwards by the various special Wyckoff positions with decreasing multiplicity and increasing site symmetry. For each general and special position its multiplicity, Wyckoff letter, oriented site-symmetry symbol, and the appropriate coordinate triplets and the reflection conditions are shown. The coordinate triplets of the general position are numbered sequentially; cf. the symmetry operations. See Section 2.2.11 and Section 8.3.2. ';
help_title[12] = 'Oriented site-symmetry symbol';
help_text[12] = 'This shows the site symmetry at the points of a special position in oriented form. See Section 2.2.12.';
help_title[13] = 'Reflection conditions';
help_text[13] = 'See Section 2.2.13';
help_title[14] = 'Symmetry of special projections';
help_text[14] = 'Information on orthographic projections along three (symmetry) directions is given here, including the projection direction, the plane group of the projection, and the axes and origin of the projected cell. See Section 2.2.14.';
help_title[15] = 'Maximal non-isomorphic subgroups';
help_text[15] = "See Section 2.2.15 and Section 8.3.3. Type I are translationengleiche or t subgroups, type IIa are klassengleiche or k subgroups obtained by `decentring' the conventional cell (this applies only to space groups with centred cells) and type IIb are klassengleiche or k subgroups obtained by enlarging the conventional unit cell.
For types I and IIa the following information is given: index [between brackets]; `unconventional' Hermann-Mauguin symbol of the subgroup; `conventional' Hermann-Mauguin symbol of the subgroup, if different (between parentheses); coordinate triplets retained in the subgroup.
For type IIb the following information is given: index [between brackets]; `unconventional' Hermann-Mauguin symbol of the subgroup; basis-vector relations between the group and subgroup (between parentheses); `conventional' Hermann-Mauguin symbol of the subgroup, if different (between parentheses).";
help_title[16] = 'Maximal isomorphic subgroups of lowest index';
help_text[16] = "See Sections 2.2.15, 8.3.3 and 13.1.2. Type IIc are klassengleiche or k subgroups of lowest index which are of the same type as the group, i.e. have the same standard Hermann-Mauguin symbol. The following information is given: index [between brackets]; `unconventional' Hermann-Mauguin symbol of the subgroup; basis-vector relations between the group and subgroup (between parentheses); `conventional' Hermann-Mauguin symbol of the subgroup, if different (between parentheses).";
help_title[17] = 'Minimal non-isomorphic supergroups';
help_text[17] = "See Sections 2.2.15 and 8.3.3. This list contains the reverse relations of the subgroup tables; only types I (t supergroups) and II (k supergroups) are distinguished. The following information is given: index [between brackets]; `unconventional' Hermann-Mauguin symbol of the subgroup; basis-vector relations between the group and subgroup (between parentheses); `conventional' Hermann-Mauguin symbol of the subgroup, if different (between parentheses).";
help_title[18] = 'Space-group number';
help_text[18] = 'The sequential number of the space group. See Section 2.2.3.';
}