mae.tut.num
Class Complex

java.lang.Object
  mae.tut.num.Number
      mae.tut.num.Complex

All Implemented Interfaces:

java.io.Serializable

public class Complex

extends Number

Represents a complex number, implemented as x+iy.

Where x is the real part, y is the imaginary part.

Complex numbers can be compared for equality, but order is not defined.

See Also:

Serialized Form

Constructor Summary

Complex(float r, float i)
Use factory method Factory.newComplex(float,float), rather than this constructor

Method Summary

Number	add(Number n) Adds this Number to another Number n and returns the result.
float	angle() Theta angle of polar coordinates, in the range of -90 through 270 degrees
boolean	equals(java.lang.Object x) Compares this Number to another Object for equality.
static Complex	fromNumber(Number n) Converts Number n into Complex, if not already Complex
static Number	fromPolar(float r, float a) Makes a (Complex) Number from polar coordinates
Number	inverse() Returns the multiplicative inverse of this Number.
Number	mult(Number n) Multiplies this Number by another Number n and returns the result.
java.lang.String	toPolar() String representation of this Number in polar coordinates
java.lang.String	toString() String representation of this Number in cartesian coordinates
float	value() Distance to origin (rho)

Methods inherited from class mae.tut.num.Number

hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Complex

public Complex(float r,
               float i)

Use factory method Factory.newComplex(float,float), rather than this constructor

Method Detail

add

public Number add(Number n)

Description copied from class: Number

Adds this Number to another Number n and returns the result.

If this Number and n are of the same type, returned result must be of that type.
If this and n are of different types, returned result must be as narrow as possible.
But in all cases add(n) and n.add(this) must return the same Number.

Specified by:

add in class Number

mult

public Number mult(Number n)

Description copied from class: Number

Multiplies this Number by another Number n and returns the result.

If this Number and n are of the same type, returned result must be of that type.
If this and n are of different types, returned result must be as narrow as possible.
But in all cases mult(n) and n.mult(this) must return the same Number.

Specified by:

mult in class Number

inverse

public Number inverse()

Description copied from class: Number

Returns the multiplicative inverse of this Number.

For any Number n, if inverse() is defined, n.inverse().inverse() must be equal to n.
Also n.inverse().mult(n).value() must be 1.0

Specified by:

inverse in class Number

value

public float value()

Distance to origin (rho)

Specified by:

value in class Number

angle

public float angle()

Theta angle of polar coordinates, in the range of -90 through 270 degrees

toPolar

public java.lang.String toPolar()

String representation of this Number in polar coordinates

toString

public java.lang.String toString()

String representation of this Number in cartesian coordinates

equals

public boolean equals(java.lang.Object x)

Compares this Number to another Object for equality.

The result is true if and only if the argument (not null) is a Complex with the same field values
OR this Number happens to be real with the same value as x.

fromPolar

public static Number fromPolar(float r,
                               float a)

Makes a (Complex) Number from polar coordinates

fromNumber

public static Complex fromNumber(Number n)

Converts Number n into Complex, if not already Complex