### Methods

#### (static) add(out, a, b) → {mat2}

Adds two mat2's

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the first operand |

`b` |
mat2 | the second operand |

##### Returns:

out

- Type
- mat2

#### (static) adjoint(out, a) → {mat2}

Calculates the adjugate of a mat2

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the source matrix |

##### Returns:

out

- Type
- mat2

#### (static) clone(a) → {mat2}

Creates a new mat2 initialized with values from an existing matrix

##### Parameters:

Name | Type | Description |
---|---|---|

`a` |
mat2 | matrix to clone |

##### Returns:

a new 2x2 matrix

- Type
- mat2

#### (static) copy(out, a) → {mat2}

Copy the values from one mat2 to another

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the source matrix |

##### Returns:

out

- Type
- mat2

#### (static) create() → {mat2}

Creates a new identity mat2

##### Returns:

a new 2x2 matrix

- Type
- mat2

#### (static) determinant(a) → {Number}

Calculates the determinant of a mat2

##### Parameters:

Name | Type | Description |
---|---|---|

`a` |
mat2 | the source matrix |

##### Returns:

determinant of a

- Type
- Number

#### (static) equals(a, b) → {Boolean}

Returns whether or not the matrices have approximately the same elements in the same position.

##### Parameters:

Name | Type | Description |
---|---|---|

`a` |
mat2 | The first matrix. |

`b` |
mat2 | The second matrix. |

##### Returns:

True if the matrices are equal, false otherwise.

- Type
- Boolean

#### (static) exactEquals(a, b) → {Boolean}

Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)

##### Parameters:

Name | Type | Description |
---|---|---|

`a` |
mat2 | The first matrix. |

`b` |
mat2 | The second matrix. |

##### Returns:

True if the matrices are equal, false otherwise.

- Type
- Boolean

#### (static) frob(a) → {Number}

Returns Frobenius norm of a mat2

##### Parameters:

Name | Type | Description |
---|---|---|

`a` |
mat2 | the matrix to calculate Frobenius norm of |

##### Returns:

Frobenius norm

- Type
- Number

#### (static) fromRotation(out, rad) → {mat2}

Creates a matrix from a given angle
This is equivalent to (but much faster than):
mat2.identity(dest);
mat2.rotate(dest, dest, rad);

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | mat2 receiving operation result |

`rad` |
Number | the angle to rotate the matrix by |

##### Returns:

out

- Type
- mat2

#### (static) fromScaling(out, v) → {mat2}

Creates a matrix from a vector scaling
This is equivalent to (but much faster than):
mat2.identity(dest);
mat2.scale(dest, dest, vec);

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | mat2 receiving operation result |

`v` |
vec2 | Scaling vector |

##### Returns:

out

- Type
- mat2

#### (static) fromValues(m00, m01, m10, m11) → {mat2}

Create a new mat2 with the given values

##### Parameters:

Name | Type | Description |
---|---|---|

`m00` |
Number | Component in column 0, row 0 position (index 0) |

`m01` |
Number | Component in column 0, row 1 position (index 1) |

`m10` |
Number | Component in column 1, row 0 position (index 2) |

`m11` |
Number | Component in column 1, row 1 position (index 3) |

##### Returns:

out A new 2x2 matrix

- Type
- mat2

#### (static) identity(out) → {mat2}

Set a mat2 to the identity matrix

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

##### Returns:

out

- Type
- mat2

#### (static) invert(out, a) → {mat2}

Inverts a mat2

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the source matrix |

##### Returns:

out

- Type
- mat2

#### (static) LDU(L, D, U, a)

Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix

##### Parameters:

Name | Type | Description |
---|---|---|

`L` |
mat2 | the lower triangular matrix |

`D` |
mat2 | the diagonal matrix |

`U` |
mat2 | the upper triangular matrix |

`a` |
mat2 | the input matrix to factorize |

#### (static) mul()

Alias for mat2.multiply

#### (static) multiply(out, a, b) → {mat2}

Multiplies two mat2's

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the first operand |

`b` |
mat2 | the second operand |

##### Returns:

out

- Type
- mat2

#### (static) multiplyScalar(out, a, b) → {mat2}

Multiply each element of the matrix by a scalar.

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the matrix to scale |

`b` |
Number | amount to scale the matrix's elements by |

##### Returns:

out

- Type
- mat2

#### (static) multiplyScalarAndAdd(out, a, b, scale) → {mat2}

Adds two mat2's after multiplying each element of the second operand by a scalar value.

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving vector |

`a` |
mat2 | the first operand |

`b` |
mat2 | the second operand |

`scale` |
Number | the amount to scale b's elements by before adding |

##### Returns:

out

- Type
- mat2

#### (static) rotate(out, a, rad) → {mat2}

Rotates a mat2 by the given angle

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the matrix to rotate |

`rad` |
Number | the angle to rotate the matrix by |

##### Returns:

out

- Type
- mat2

#### (static) scale(out, a, v) → {mat2}

Scales the mat2 by the dimensions in the given vec2

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the matrix to rotate |

`v` |
vec2 | the vec2 to scale the matrix by |

##### Returns:

out

- Type
- mat2

#### (static) set(out, m00, m01, m10, m11) → {mat2}

Set the components of a mat2 to the given values

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`m00` |
Number | Component in column 0, row 0 position (index 0) |

`m01` |
Number | Component in column 0, row 1 position (index 1) |

`m10` |
Number | Component in column 1, row 0 position (index 2) |

`m11` |
Number | Component in column 1, row 1 position (index 3) |

##### Returns:

out

- Type
- mat2

#### (static) str(a) → {String}

Returns a string representation of a mat2

##### Parameters:

Name | Type | Description |
---|---|---|

`a` |
mat2 | matrix to represent as a string |

##### Returns:

string representation of the matrix

- Type
- String

#### (static) sub()

Alias for mat2.subtract

#### (static) subtract(out, a, b) → {mat2}

Subtracts matrix b from matrix a

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the first operand |

`b` |
mat2 | the second operand |

##### Returns:

out

- Type
- mat2

#### (static) transpose(out, a) → {mat2}

Transpose the values of a mat2

##### Parameters:

Name | Type | Description |
---|---|---|

`out` |
mat2 | the receiving matrix |

`a` |
mat2 | the source matrix |

##### Returns:

out

- Type
- mat2