# What does a vertical line mean in a math equation?

## What does a vertical line mean in a math equation?

The vertical line, also called the vertical slash or upright slash ( | ), is used in mathematical notation in place of the expression “such that” or “it is true that.” This symbol is commonly encountered in statements involving logic and sets.

## What does || mean in math?

To signify that two lines are parallel, you can place the names of the lines on either side of this symbol. For example, AB || CD means that the line AB runs parallel to the line CD.

What does a vertical line mean in math on a graph?

It explains how to tell if a graph represents a function using the vertical line test. If the curve touches the vertical line at only one point, then it is a function. If the graph touches the vertical line at more than one point, then it is not a function.

### What does a vertical line mean in statistics?

The vertical bar is often called a ‘pipe’. It is often used in mathematics, logic and statistics. It typically is read as ‘given that’. In probability and statistics it often indicates conditional probability, but can also indicate a conditional distribution. You can read it as ‘conditional on’.

### What do 2 vertical lines mean in geometry?

absolute value
The symbol for absolute value is two vertical lines. Since opposites are the same distance from the origin, they have the same absolute value. For example, the absolute value of “negative 10” is ten, and the absolute value of “positive 10” is also 10. The absolute value of zero is zero.

What does double vertical lines mean in math?

Double bars (or sometimes even single bars) tend to denote a norm in Mathematics. Most likely, the double bars here are denoting the Euclidean norm. This is just the length of the vector. So for example, the vector (I shall write it horizontally for compactness) (1,2,3) has length ‖(1,2,3)‖=√12+22+32=√14.

#### What is a vertical line and how is it used?

A vertical line is used to find if a given graph is a function. A relation is said to be a function only when a vertical line drawn intersects the graph only at one point. A function can have only one output for every input.

#### How does vertical looks like?

A vertical line goes straight from top to bottom and bottom to top in a coordinate plane.

What does a vertical line mean in probability?

conditional probability
The vertical bar is often called a ‘pipe’. It is often used in mathematics, logic and statistics. It typically is read as ‘given that’. In probability and statistics it often indicates conditional probability, but can also indicate a conditional distribution. You can read it as ‘conditional on’.

## What does 2 lines after a number mean?

The symbol for absolute value is two vertical lines. Since opposites are the same distance from the origin, they have the same absolute value. For example, the absolute value of “negative 10” is ten, and the absolute value of “positive 10” is also 10. The absolute value of zero is zero.

## What does horizontal line over number mean in mathematics?

An overline, overscore, or overbar, is a typographical feature of a horizontal line drawn immediately above the text. In old mathematical notation, an overline was called a vinculum, a notation for grouping symbols which is expressed in modern notation by parentheses, though it persists for symbols under a radical sign. The original use in Ancient Greek was to indicate compositions of Greek letters as Greek numerals. In Latin, it indicates Roman numerals multiplied by a thousand and it forms med

What is the definition of a vertical line in math?

The vertical line is a line that is perpendicular to the surface or another line that is considered as the base. In co-ordinate geometry, the vertical lines are parallel to the y-axis and are generally perpendicular to the horizontal lines. A vertical line is always a straight line that goes from top to bottom or bottom to top.

### What are the horizontal and vertical lines on a map?

– If the measure on the grid is: – degrees, the lines are longitudes east-west of a prime meridian, and latitudes north-south of the Equator. The measurement is degrees. – decimal numbers, the lines are axes in a grid reference system, and they are called X and Y, or maybe Northing and Easting depending on the grid system.

### What does a double vertical bar mean in math?

Mathematics. Used in the context of a definite integral with variable x.

• Physics. The vertical bar is used in bra–ket notation in quantum physics.
• Computing.
• Phonetics and orthography.
• Literature.