Real line

In mathematics, the real line, or real number line is the line whose points are the real numbers. That is, the real line is the set R of all real numbers, viewed as a geometric space, namely the Euclidean space of dimension one. It can be thought of as a vector space (or affine space), a metric space, a topological space, a measure space, or a linear continuum.

Just like the set of real numbers, the real line is usually denoted by the symbol R (or alternatively, , the letter “R” in blackboard bold). However, it is sometimes denoted R¹ in order to emphasize its role as the first Euclidean space.

This article focuses on the aspects of R as a geometric space in topology, geometry, and real analysis. The real numbers also play an important role in algebra as a field, but in this context R is rarely referred to as a line. For more information on R in all of its guises, see real number.

As a linear continuum

The real line is a linear continuum under the standard < ordering. Specifically, the real line is linearly ordered by <, and this ordering is dense and has the least-upper-bound property.

Floor plan

In architecture and building engineering, a floor plan is a drawing to scale, showing a view from above, of the relationships between rooms, spaces and other physical features at one level of a structure.

Dimensions are usually drawn between the walls to specify room sizes and wall lengths. Floor plans may also include details of fixtures like sinks, water heaters, furnaces, etc. Floor plans may include notes for construction to specify finishes, construction methods, or symbols for electrical items.

It is also called a plan which is a measured plane typically projected at the floor height of 4 ft (1.2 m), as opposed to an elevation which is a measured plane projected from the side of a building, along its height, or a section or cross section where a building, is cut along an axis to reveal the interior structure.

Overview

Similar to a map the orientation of the view is downward from above, but unlike a conventional map, a plan is drawn at a particular vertical position (commonly at about 4 feet above the floor). Objects below this level are seen, objects at this level are shown 'cut' in plan-section, and objects above this vertical position within the structure are omitted or shown dashed. Plan view or planform is defined as a vertical orthographic projection of an object on a horizontal plane, like a map.

Line (poetry)

A line is a unit of language into which a poem or play is divided, which operates on principles which are distinct from and not necessarily coincident with grammatical structures, such as the sentence or clauses in sentences. Although the word for a single poetic line is verse, that term now tends to be used to signify poetic form more generally.

A distinct numbered group of lines in verse is normally called a stanza.

General conventions in Western poetry

A conventions that determine what might constitute line in poetry depend upon different constraints, aural characteristics or scripting conventions for any given language. On the whole, where relevant, a line is generally determined either by units of rhythm or repeating aural patterns in recitation that can also be marked by other features such as rhyme or alliteration, or by patterns of syllable-count.

In Western literary traditions, use of line is arguably the principal feature which distinguishes poetry from prose. Even in poems where formal metre or rhyme is weakly observed or absent, the convention of line continues on the whole to be observed, at least in written representations, although there are exceptions (see Degrees of license). In such writing, simple visual appearance on a page (or any other written layout) remains sufficient to determine poetic line, and this sometimes leads to a "charge" that the work in question is no longer a poem but "chopped up prose". A dropped line is a line broken into two parts, with the second indented to remain visually sequential.

915 line

Titleist 915 Drivers

The 915 line is a line of new drivers, made by Titleist, set to release November 14, 2014 for the general public. The line comes in two models and introduces some new changes to the previous 913 design. In addition to being able to tweak the driver head, Titleist also pairs with Diamana and Aldila shafts, which provide many options for further customization.

Design

Titleist releases a new line of driver every other year, the last line being the 913 set. Much like the previous 913 line, the D2 comes in a 460 cubic centimeter head and the D3 comes in a 440 cc head. The clubs still have the same visual look from above as its older models, but went through some radical changes regarding the bottom of the club over the last two years. This is mainly in regards to the “Active Recoil Channel” that was added just behind the face of the club. The face of the club also went through some small changes.

Active Recoil Channel

The Active Recoil Channel (ARC) is a fairly long, deep channel that runs along the bottom of the head right behind the face. The idea behind the design is that when the ball impacts with the face, the channel will "actively" flex and compress which will lead to lower spin off the face and higher ball speed. Clubs that don't have the channel tend to be more rigid and produce excess spin while losing ball speed.