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## What does the O symbol mean in math?

Basically, it tells **you how fast a function grows or declines**. Landau’s symbol comes from the name of the German number theoretician Edmund Landau who invented the notation. The letter O is used because the rate of growth of a function is also called its order.

## What does ∏ mean?

∏ (mathematics) **A symbol representing a product over a set of terms**.

## Is there a symbol for around?

Approximately Symbol (**≈**)

## What does =~ mean in math?

For a closer similarity “≃” might mean **a triangle almost congruent** but only ROUGHLY similar, such as two triangles 3/4/5 and 3.1/4.1/5.1 while “≅” means congruent. Real life triangles use approximations and have rounding errors.

## What are () called in English?

They can also be used in mathematical expressions. For example, 2{1+[23-3]}=x. **Parentheses** ( () ) are curved notations used to contain further thoughts or qualifying remarks. However, parentheses can be replaced by commas without changing the meaning in most cases.

## What is Hammer slang for?

on someone’s hammer Australian and NZ slang. **persistently demanding and critical of someone**. **in hot pursuit of someone**.

## What does ◇ mean?

A lozenge ( /ˈlɒz. ɪndʒ/), ◊ – often referred to as a diamond – is a form of **rhombus**. The definition of lozenge is not strictly fixed, and it is sometimes used simply as a synonym (from the French: losange) for rhombus.

## What does P mean in algebra?

What does P mean in mathematics? In probability and statistics, P (X) indicates the probability that X will occur. In set theory, P (X) denotes the set of powers of X. In set theory, P (X) denotes the set of powers of X. In geometry, P can denote a **projective space**, although this is often the name given to a period.

## What does this symbol mean in law?

The section sign, **§**, is a typographical character for referencing individually numbered sections of a document; it is frequently used when citing sections of a legal code. It is also known as the section symbol, section mark, double-s, or silcrow.

## What is the circa symbol?

Circa is Latin for “**around**” or “about”. It is often used to show when something approximately happened. It is often shortened to c., ca., ca or cca.