Quick Answer: What Does 3 Lines Mean In Maths?

What does this mean ≅?

Approximate equality CongruenceThe symbol ≅ is officially defined as U+2245 ≅ APPROXIMATELY EQUAL TO.

It may refer to: Approximate equality.

Congruence (geometry).

What does === mean?

Strict equality (===) means values which we are comparing must have the same type. This means “2” will not be equal to 2 (“2″===2 it will return false) Type converting equality (==) means automatically it will covert the variable to value irrespective of data type; either it is a string or a number.

What is the sign for congruence?

The symbol ≡ means “is congruent to”. Two triangles are similar if they have the same shape.

What does the triple equal sign mean?

A triple equals sign means equivalent. Equivalent is not the same ask ‘equals’. According to my professor, 1/2 is equivalent to 2/4 but 1/2 is not equals to 2/4. Thefore, equivalence and equals are not the same just identical.

What does this symbol mean in maths?

This symbol < means less than, for example 2 < 4 means that 2 is less than 4. This symbol > means greater than, for example 4 > 2. ≤ ≥ These symbols mean ‘less than or equal to’ and ‘greater than or equal to’ and are commonly used in algebra. In computer applications <= and >= are used.

What does three lines mean in chemistry?

The triple bar, ≡, is a symbol with multiple, context-dependent meanings. It has the appearance of a “=” sign with a third line. … In chemistry, the triple bar can be used to represent a triple bond between atoms. For example, HC≡CH is a common shorthand for acetylene.

What is the meaning of enantiomers?

In chemistry, an enantiomer (/ɪˈnæntiəmər, ɛ-, -tioʊ-/ ə-NAN-tee-ə-mər; from Greek ἐνάντιος (enántios), meaning ‘opposite’, and μέρος (méros), meaning ‘part’) (also named optical isomer, antipode, or optical antipode) is one of two stereoisomers that are mirror images of each other that are non-superposable (not …

What does a dotted line mean in chemistry?

(chemistry) A method of representing the three-dimensional structure of a molecule in which solid lines represent bonds in the plane of the image, wedges represent bonds towards the viewer, and dashed lines represent bonds away from the viewer.

What does dotted line represent in drawing?

Dotted or dashed lines therefore have an association with the temporary, the invisible, the hidden, the not finished or not solid. In the image above a dotted line is used to represent what is hidden beneath the body.

What does ≡ mean in math?

(mathematics) “is equivalent to” (mathematics) “is identically equal to”. “is defined as” or “is set to”. The functions f and g satisfy f≡g if and only if their respective domain of definition coincide, and if f(x)=g(x) for all x in this domain.

What 3 lines tattoo mean?

Some say the three lines tattoo is a symbol of the “third degree” or master mason. The freemasons were (or are) a secret society that dates back to the founding of the U.S. It is said the freemasons have been recruiting some of the most powerful people in the world to work with them.

What do 3 vertical lines mean?

Found it! This symbol, which looks like a dollar sign ($), is actually the letters I, H, and S superimposed over each other. These represent the Greek letters Iota (Ι), Eta (Η) and Sigma (Σ), which are the first three letters of Jesus in Greek. See IHS Monogram for more information.