[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [Mat2](./rc-js-util.mat2.md) ## Mat2 class Row major 2x2 matrix. **Signature:** ```typescript export declare abstract class Mat2 extends ATypedArrayTuple<4, TArray> ``` **Extends:** [ATypedArrayTuple](./rc-js-util.atypedarraytuple.md)<4, 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.mat2._0_.md)		number	c1r1
["1"](./rc-js-util.mat2._1_.md)		number	c2r1
["2"](./rc-js-util.mat2._2_.md)		number	c2r2
["3"](./rc-js-util.mat2._3_.md)		number	c2r2
[constructor](./rc-js-util.mat2.constructor.md)		[IMat2Ctor](./rc-js-util.imat2ctor.md)<TArray>
[constructors](./rc-js-util.mat2.constructors.md)	`protected` `static`	Map<import("../t-typed-array-ctor.js").[TFullSetTypedArrayCtor](./rc-js-util.tfullsettypedarrayctor.md), Function>
[f32](./rc-js-util.mat2.f32.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Float32Array>
[f64](./rc-js-util.mat2.f64.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Float64Array>
[i16](./rc-js-util.mat2.i16.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Int16Array>
[i32](./rc-js-util.mat2.i32.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Int32Array>
[i64](./rc-js-util.mat2.i64.md)	`static`	null
[i8](./rc-js-util.mat2.i8.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Int8Array>
[TTypeGuardMat2](./rc-js-util.mat2.ttypeguardmat2.md)	`protected`	true
[u16](./rc-js-util.mat2.u16.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Uint16Array>
[u32](./rc-js-util.mat2.u32.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Uint32Array>
[u64](./rc-js-util.mat2.u64.md)	`static`	null
[u8](./rc-js-util.mat2.u8.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Uint8Array>
[u8c](./rc-js-util.mat2.u8c.md)	`static`	[IMat2Ctor](./rc-js-util.imat2ctor.md)<Uint8ClampedArray>

## Methods

Method	Modifiers	Description
[castToBaseType()](./rc-js-util.mat2.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.mat2.copyfrombuffer.md)		If endianness is not supplied the platform's endianness will be used.
[copyToBuffer(\_memoryDataView, \_pointer, \_littleEndian)](./rc-js-util.mat2.copytobuffer.md)		If endianness is not supplied the platform's endianness will be used.
[getCtor(ctor)](./rc-js-util.mat2.getctor.md)	`static`
[getLoggableValue()](./rc-js-util.mat2.getloggablevalue.md)
[getRow(\_row, \_writeTo)](./rc-js-util.mat2.getrow.md)
[getValueAt(\_column, \_row)](./rc-js-util.mat2.getvalueat.md)
[getVec2MultiplyX(\_x)](./rc-js-util.mat2.getvec2multiplyx.md)
[isEqualTo(\_other)](./rc-js-util.mat2.isequalto.md)		Component-wise equals.
[multiplyMat2(\_mat, \_result)](./rc-js-util.mat2.multiplymat2.md)
[scalarAdd(\_value, \_result)](./rc-js-util.mat2.scalaradd.md)
[scalarMultiply(\_value, \_result)](./rc-js-util.mat2.scalarmultiply.md)
[setIdentityMatrix()](./rc-js-util.mat2.setidentitymatrix.md)
[setRow(\_row, \_writeFrom)](./rc-js-util.mat2.setrow.md)
[setScalingMatrix(\_scalingFactor)](./rc-js-util.mat2.setscalingmatrix.md)
[setTranslationMatrix(\_translation)](./rc-js-util.mat2.settranslationmatrix.md)
[setValueAt(\_column, \_row, \_value)](./rc-js-util.mat2.setvalueat.md)
[update(\_args)](./rc-js-util.mat2.update.md)