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GNN Punctuation

GNN Punctuation

Symbol

Meaning

Example Use

Meaning of Example

A caret means superscript.

X^Y

X with a superscript Y

A comma is used to separate items in a list.

X,Y

List with X and Y as elements

A hashtag signals the title header in the Markdown file.

# Title123

Has “Title123” as model title

A double hashtag signals a new section in the Markdown file.

## Section123

Has “Section123” as a section name

###

A triple hashtag is a comment line in the Markdown file.

### Comment123

Has “Comment123” as a comment

{ }

Curly brackets are specification of exact values for a variable.

X{1}

X is a scalar with value of 1

Hypen is an undirected causal edge between two variables.

X-Y

Undirected causal edge between X and Y

( )

Parentheses are used to bound other expressions.

X^(Y_2)

X with a superscript that is Y with a subscript 2

[ ]

Rectangular brackets define the dimensionality, or state space, of a variable.

X[2,3]

X is a matrix with dimensions (2,3)

The equals sign declares the two side of the = to be equal.

X=5

Sets the variable X to value of 5

The greater than symbol represents a directed causal edge between two variables.

X>Y

Unidirectional causal edge from X to Y

Underscore means subscript.

X_2

X with a subscript 2

There are no rows in this table

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