# double4x4 > A 4x4 matrix of doubles. ## Definition * **Type:** Struct * **Namespace:** [Unity.Mathematics](/engine/6000.6/script-reference/unity/mathematics.md) * **Assembly:** UnityEngine.MathematicsModule * **Implements:** [IEquatable\](https://learn.microsoft.com/dotnet/api/system.iequatable-1), [IFormattable](https://learn.microsoft.com/dotnet/api/system.iformattable) ```csharp public struct double4x4 : IEquatable, IFormattable ``` ## Fields | Value | Description | | ----------------------------------------------------------------------- | ----------------------- | | [c0](/engine/6000.6/script-reference/unity/mathematics/double4x4/c0.md) | Column 0 of the matrix. | | [c1](/engine/6000.6/script-reference/unity/mathematics/double4x4/c1.md) | Column 1 of the matrix. | | [c2](/engine/6000.6/script-reference/unity/mathematics/double4x4/c2.md) | Column 2 of the matrix. | | [c3](/engine/6000.6/script-reference/unity/mathematics/double4x4/c3.md) | Column 3 of the matrix. | ## Static Fields | Value | Description | | ----------------------------------------------------------------------------------- | ----------------------------- | | [identity](/engine/6000.6/script-reference/unity/mathematics/double4x4/identity.md) | double4x4 identity transform. | | [zero](/engine/6000.6/script-reference/unity/mathematics/double4x4/zero.md) | double4x4 zero value. | ## Constructors | Constructor | Description | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- | | [double4x4(System.Boolean)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(bool\)) | Constructs a double4x4 matrix from a single bool value by converting it to double and assigning it to every component. | | [double4x4(System.Double)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(double\)) | Constructs a double4x4 matrix from a single double value by assigning it to every component. | | [double4x4(System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double,System.Double)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(double-double-double-double-double-double-double-double-double-double-double-double-double-double-double-double\)) | Constructs a double4x4 matrix from 16 double values given in row-major order. | | [double4x4(System.Int32)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(int\)) | Constructs a double4x4 matrix from a single int value by converting it to double and assigning it to every component. | | [double4x4(System.Single)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(float\)) | Constructs a double4x4 matrix from a single float value by converting it to double and assigning it to every component. | | [double4x4(System.UInt32)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(uint\)) | Constructs a double4x4 matrix from a single uint value by converting it to double and assigning it to every component. | | [double4x4(Unity.Mathematics.bool4x4)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(bool4x4\)) | Constructs a double4x4 matrix from a bool4x4 matrix by componentwise conversion. | | [double4x4(Unity.Mathematics.double4,Unity.Mathematics.double4,Unity.Mathematics.double4,Unity.Mathematics.double4)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(double4-double4-double4-double4\)) | Constructs a double4x4 matrix from four double4 vectors. | | [double4x4(Unity.Mathematics.float4x4)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(float4x4\)) | Constructs a double4x4 matrix from a float4x4 matrix by componentwise conversion. | | [double4x4(Unity.Mathematics.int4x4)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(int4x4\)) | Constructs a double4x4 matrix from a int4x4 matrix by componentwise conversion. | | [double4x4(Unity.Mathematics.uint4x4)](/engine/6000.6/script-reference/unity/mathematics/double4x4/ctor.md#double4x4\(uint4x4\)) | Constructs a double4x4 matrix from a uint4x4 matrix by componentwise conversion. | ## Properties | Property | Description | | ------------------------------------------------------------------------------- | ------------------------------------------------- | | [this\[\]](/engine/6000.6/script-reference/unity/mathematics/double4x4/item.md) | Returns the double4 element at a specified index. | ## Methods | Method | Description | | ----------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | | [Equals](/engine/6000.6/script-reference/unity/mathematics/double4x4/equals.md) | Returns true if the double4x4 is equal to a given double4x4, false otherwise. | | [GetHashCode](/engine/6000.6/script-reference/unity/mathematics/double4x4/gethashcode.md) | Returns a hash code for the double4x4. | | [ToString](/engine/6000.6/script-reference/unity/mathematics/double4x4/tostring.md) | Returns a string representation of the double4x4. | ## Operators | Operator | Description | | --------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | | [operator +](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-addition.md) | Returns the result of a componentwise addition operation on a double value and a double4x4 matrix. | | [operator --](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-decrement.md) | Returns the result of a componentwise decrement operation on a double4x4 matrix. | | [operator /](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-division.md) | Returns the result of a componentwise division operation on a double value and a double4x4 matrix. | | [operator ==](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-equality.md) | Returns the result of a componentwise equality operation on a double value and a double4x4 matrix. | | [double4x4](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-explicit.md) | Explicitly converts a single bool value to a double4x4 matrix by converting it to double and assigning it to every component. | | [operator >](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-greaterthan.md) | Returns the result of a componentwise greater than operation on a double value and a double4x4 matrix. | | [operator >=](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-greaterthanorequal.md) | Returns the result of a componentwise greater or equal operation on a double value and a double4x4 matrix. | | [operator ++](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-increment.md) | Returns the result of a componentwise increment operation on a double4x4 matrix. | | [operator !=](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-inequality.md) | Returns the result of a componentwise not equal operation on a double value and a double4x4 matrix. | | [operator \<](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-lessthan.md) | Returns the result of a componentwise less than operation on a double value and a double4x4 matrix. | | [operator \<=](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-lessthanorequal.md) | Returns the result of a componentwise less or equal operation on a double value and a double4x4 matrix. | | [operator %](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-modulus.md) | Returns the result of a componentwise modulus operation on a double value and a double4x4 matrix. | | [operator \*](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-multiply.md) | Returns the result of a componentwise multiplication operation on a double value and a double4x4 matrix. | | [operator -](/engine/6000.6/script-reference/unity/mathematics/double4x4/op-subtraction.md) | Returns the result of a componentwise subtraction operation on a double value and a double4x4 matrix. |