---
title: "Matrix.IsIdentity Property "
canonical: https://www.graphicsmill.com/docs/gm/P_Aurigma_GraphicsMill_Transforms_Matrix_IsIdentity.htm
product: "Graphics Mill"
---

# Matrix.IsIdentity Property 
 
Gets a value indicating whether this [Matrix](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Transforms_Matrix.htm.md) is the identity matrix.
 
**Namespace:** [Aurigma.GraphicsMill.Transforms](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)
 **Assembly:** Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)
 
## Syntax
  
```csharp
public bool IsIdentity { get; }
```
 
### Property Value
 `true` if this [Matrix](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Transforms_Matrix.htm.md) is identity; otherwise, `false`.
 
## Remarks
  
Identifty matrix is a matrix which has a following structure: all elements of the main diagonal (i.e. A[0,0], A[1,1], and A[2,2]) are equal to 1, all other elements are equal to 0.
 
This kind of matrix is very important in the linear algebra. It has the following characteristics: when you multiply any other matrix or a vector by an identify matrix, the result is the same as an input matrix or vector. In other words, it represents a neutral element for an operation of matrix multiplication.
   
## See Also

### Reference

- [Matrix Class](https://www.graphicsmill.com/docs/gm/T_Aurigma_GraphicsMill_Transforms_Matrix.htm.md)
- [Aurigma.GraphicsMill.Transforms Namespace](https://www.graphicsmill.com/docs/gm/N_Aurigma_GraphicsMill_Transforms.htm.md)