sims.math

Matrix22

class Matrix22(c11: Double, c12: Double, c21: Double, c22: Double) extends Product

A 2x2 matrix.

c11

component 1,1

c12

component 1,2

c21

component 2,1

c22

component 2,2

Inherits

  1. Product
  2. Equals
  3. AnyRef
  4. Any

Value Members

  1. def *(v: Vector2D): Vector2D

    Multiplikation with a 2D vector

    Multiplikation with a 2D vector.

  2. def *(m: Matrix22): Matrix22

    Matrix multiplication

    Matrix multiplication.

  3. def *(n: Double): Matrix22

    Scalar multiplication

    Scalar multiplication.

  4. def +(m: Matrix22): Matrix22

    Addition

    Addition.

  5. val c11: Double

  6. val c12: Double

  7. val c21: Double

  8. val c22: Double

  9. def canEqual(arg0: Any): Boolean

  10. def det: Double

    Determinant of this matrix

    Determinant of this matrix.

  11. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

  12. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

  13. def invert: Matrix22

    Inverse

    Inverse.

  14. def productArity: Int

  15. def productElement(arg0: Int): Any

  16. def productElements: Iterator[Any]

  17. def productIterator: Iterator[Any]

  18. def productPrefix: String

  19. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

Instance constructors

  1. new Matrix22(c1: Vector2D, c2: Vector2D)

    A 2x2 matrix can be created with two 2D vectors

    A 2x2 matrix can be created with two 2D vectors. In this case, each column is represented by a vector.

    c1

    first column

    c2

    second column

  2. new Matrix22(c11: Double, c12: Double, c21: Double, c22: Double)

  3. new Matrix22()