angular unit

Known: the sides (in angular units).

As an angular unit, the turn or revolution is particularly useful for large angles, such as in connection with coils and rotating objects.

Note that the sides of a spherical triangle are usually measured rather by angular units than by linear, according to corresponding central angles.

That is the length or diameter of the object in terms of angular units (e.g., degrees).

The last two angular units; plane angle and solid angle are subsidiary units used in the SI, but treated dimensionless.

Polar coordinates in the plane employ a radial unit vector u and an angular unit vector u, as shown above.

It is thought that the ancient Chinese astronomers also used chi as an angular unit; modern analysis of historical records indicates that it may have been equal to one degree.

The Geographic Calculator is a coordinate conversion library with a database of coordinate mathematic objects including projections, coordinate systems, datums, elipsoids, linear and angular units.

Today, the reference plane for an azimuth in a general navigational context is typically true north, measured as a 0 azimuth, though other angular units (grad, mil) can also be employed.

For this, they envisaged that the angular unit cun corresponds to a considerable angle of 1 or 2 degrees, meaning that the distance from the remnant to ζ Tauri was therefore considerable.

From this projected ellipse the complete elements of the orbit may be computed, where the semi-major axis can only be expressed in angular units unless the stellar parallax, and hence the distance, of the system is known.

FIG. 2 a, How the vertical size ratio (VSR) of a small element on a fronto-parallel surface (measured in angular units) varies with cyclopean eccentricity,e, and the normal distance to the surface,D.

Even though angular velocity, angular frequency and hertz all have the dimensions of 1/s, angular velocity and angular frequency are not expressed in hertz, but rather in an appropriate angular unit such as radians per second.

The angular units are not the ones used to determine stars' coordinates, which are given in terms of du, an angular unit corresponding to the average angular distance travelled by then sun per day, which corresponds to around 360/365.25 degrees, in other words barely one degree.