These symbols are the same as used in point groups, with the addition of glide planes and screw axis, described above.

The load-bearing thread face is perpendicular to the screw axis.

A point C on the screw axis satisfies the equation:

In addition, there are operations that displace all the points: translation, screw axis, and glide plane.

Rutile also shows a screw axis when its octahedra are viewed sequentially.

The continuous symmetry groups without a fixed point include those with a screw axis, such as an infinite helix.

In 2-dimensions they repeat as glide reflections, as screw axis in 3-dimensions.

The screw axis is noted by a number, n, where the angle of rotation is .

(The structure is chiral for 11 pairs of space groups with a screw axis.)

The screw axis of the cholesteric mesophase aligns parallel to the magnetic field.

It is similar to 3D screw axis which is the composite of a rotation and an orthogonal translation.

Screw axes, which rotate a point around an axis while translating parallel to the axis.

Because of the screw axis symmetry, this resulted in a reevaluation of the requirements for periodicity.

A screw axis is a rotation about an axis, followed by a translation along the direction of the axis.

It is possible for the interdomain screw axis to be located far away from the interdomain connections if they are very flexible.

A helical skew apeirogon has screw axis symmetry.

Its mirror image with the right-handed screw axis is given the Greek symbol Δ (delta).

An object has helical symmetry if it can be simultaneously translated and rotated in three-dimensional space along a line known as a screw axis.

Plücker coordinates are used to locate a screw axis in space, and consist of a pair of three-dimensional vectors.

This surface is not the same as the axode, which is traced by the instantaneous screw axes of the movement of a body.

The tetrahedral groups are arranged to create the 6 screw axis, and the fluorine atoms are located in channels parallel to this direction.

Parallel chains form layers perpendicular to c and these are packed in the crystal with the 65 screw axis relating adjacent layers.