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+# Is NaN Node
+
+## Description
+
+Returns true if the input **In** is not a number (NaN). This is useful for [Branching](Branch-Node.md).
+
+## Ports
+
+| Name        | Direction           | Type  | Binding | Description |
+|:------------ |:-------------|:-----|:---|:---|
+| In      | Input | Float    | None | Input value |
+| Out | Output      |    Boolean | None | Output value |
+
+## Generated Code Example
+
+The following example code represents one possible outcome of this node.
+
+```
+void Unity_IsNan_float(float In, out float Out)
+{
+    Out = (In < 0.0 || In > 0.0 || In == 0.0) ? 0 : 1;
+}
+```