[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [Mat3](./rc-js-util.mat3.md) ## Mat3 class Row major 3x3 matrix. **Signature:** ```typescript export declare abstract class Mat3 extends ATypedArrayTuple<9, TArray> ``` **Extends:** [ATypedArrayTuple](./rc-js-util.atypedarraytuple.md)<9, TArray> ## Remarks See static properties for constructors. Instances are not an extension of this class, but of the static members. ## Properties

Property	Modifiers	Type	Description
["0"](./rc-js-util.mat3._0_.md)		number	c1r1
["1"](./rc-js-util.mat3._1_.md)		number	c2r1
["2"](./rc-js-util.mat3._2_.md)		number	c3r1
["3"](./rc-js-util.mat3._3_.md)		number	c1r2
["4"](./rc-js-util.mat3._4_.md)		number	c2r2
["5"](./rc-js-util.mat3._5_.md)		number	c3r2
["6"](./rc-js-util.mat3._6_.md)		number	c1r3
["7"](./rc-js-util.mat3._7_.md)		number	c2r3
["8"](./rc-js-util.mat3._8_.md)		number	c3r3
[constructor](./rc-js-util.mat3.constructor.md)		[IMat3Ctor](./rc-js-util.imat3ctor.md)<TArray>
[constructors](./rc-js-util.mat3.constructors.md)	`protected` `static`	Map<import("../t-typed-array-ctor.js").[TFullSetTypedArrayCtor](./rc-js-util.tfullsettypedarrayctor.md), Function>
[f32](./rc-js-util.mat3.f32.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Float32Array>
[f64](./rc-js-util.mat3.f64.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Float64Array>
[i16](./rc-js-util.mat3.i16.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Int16Array>
[i32](./rc-js-util.mat3.i32.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Int32Array>
[i64](./rc-js-util.mat3.i64.md)	`static`	null
[i8](./rc-js-util.mat3.i8.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Int8Array>
[TTypeGuardMat3](./rc-js-util.mat3.ttypeguardmat3.md)	`protected`	true
[u16](./rc-js-util.mat3.u16.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Uint16Array>
[u32](./rc-js-util.mat3.u32.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Uint32Array>
[u64](./rc-js-util.mat3.u64.md)	`static`	null
[u8](./rc-js-util.mat3.u8.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Uint8Array>
[u8c](./rc-js-util.mat3.u8c.md)	`static`	[IMat3Ctor](./rc-js-util.imat3ctor.md)<Uint8ClampedArray>

## Methods

Method	Modifiers	Description
[castToBaseType()](./rc-js-util.mat3.casttobasetype.md)		Although the typed array tuples extend a typed array, they are not structurally compatible. This function returns the argument passed without modification but cast as the underlying storage type, e.g. Float32Array.
[copyFromBuffer(\_memoryDataView, \_pointer, \_littleEndian)](./rc-js-util.mat3.copyfrombuffer.md)		If endianness is not supplied the platform's endianness will be used.
[copyToBuffer(\_memoryDataView, \_pointer, \_littleEndian)](./rc-js-util.mat3.copytobuffer.md)		If endianness is not supplied the platform's endianness will be used.
[getCtor(ctor)](./rc-js-util.mat3.getctor.md)	`static`
[getLoggableValue()](./rc-js-util.mat3.getloggablevalue.md)
[getRow(\_row, \_writeTo)](./rc-js-util.mat3.getrow.md)
[getTransformedXLength(\_min, \_max)](./rc-js-util.mat3.gettransformedxlength.md)		Apply this transform as if it were x in a vec3 to both min and max, return the difference.
[getTransformedYLength(\_min, \_max)](./rc-js-util.mat3.gettransformedylength.md)		Apply this transform as if it were y in a vec3 to both min and max, return the difference.
[getValueAt(\_column, \_row)](./rc-js-util.mat3.getvalueat.md)
[getVec3MultiplyX(\_x)](./rc-js-util.mat3.getvec3multiplyx.md)
[getVec3MultiplyY(\_y)](./rc-js-util.mat3.getvec3multiplyy.md)
[isEqualTo(\_other)](./rc-js-util.mat3.isequalto.md)		Component-wise equals.
[multiplyMat3(\_mat, \_result)](./rc-js-util.mat3.multiplymat3.md)
[scalarAdd(\_value, \_result)](./rc-js-util.mat3.scalaradd.md)
[scalarMultiply(\_value, \_result)](./rc-js-util.mat3.scalarmultiply.md)
[setIdentityMatrix()](./rc-js-util.mat3.setidentitymatrix.md)
[setRotationMatrix(\_angle)](./rc-js-util.mat3.setrotationmatrix.md)		counter clockwise, in radians
[setRow(\_row, \_writeFrom)](./rc-js-util.mat3.setrow.md)
[setScalingMatrix(\_scalingFactorX, \_scalingFactorY)](./rc-js-util.mat3.setscalingmatrix.md)
[setTranslationMatrix(\_translationX, \_translationY)](./rc-js-util.mat3.settranslationmatrix.md)
[setValueAt(\_column, \_row, \_value)](./rc-js-util.mat3.setvalueat.md)