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# numnodes

Number of nodes in graph

## Syntax

``N = numnodes(G)``

## Description

example

````N = numnodes(G)` returns the number of nodes in graph `G`.```

## Examples

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Use the `bucky` adjacency matrix to create a directed graph, and then determine how many nodes the graph contains.

`G = digraph(bucky)`
```G = digraph with properties: Edges: [180x2 table] Nodes: [60x0 table] ```
`N = numnodes(G)`
```N = 60 ```

## Input Arguments

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Input graph, specified as either a `graph` or `digraph` object. Use `graph` to create an undirected graph or `digraph` to create a directed graph.

Example: `G = graph(1,2)`

Example: `G = digraph([1 2],[2 3])`

## Output Arguments

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Number of nodes, returned as a scalar.