## org.apache.commons.math
Interface FieldElement<T>

Type Parameters:
  `T` - the type of the field elements

All Known Implementing Classes:
  BigFraction, BigReal, Complex, Dfp, DfpDec, Fraction

    public interface FieldElement<T>

Interface representing field elements.

Since:
  2.0
Version:
  $Revision: 811685 $ $Date: 2009-09-05 19:36:48 +0200 (sam. 05 sept. 2009) $
See Also:
  `Field`

Method Summary
`T` `add(T a)` Compute this + a.
`T` `divide(T a)` Compute this ÷ a.
`Field<T>` `getField()` Get the `Field` to which the instance belongs.
`T` `multiply(T a)` Compute this × a.
`T` `subtract(T a)` Compute this - a.

Method Detail

### add

    T add(T a)

  Compute this + a.

  Parameters:
    `a` - element to add
  Returns:
    a new element representing this + a

### subtract

    T subtract(T a)

  Compute this - a.

  Parameters:
    `a` - element to subtract
  Returns:
    a new element representing this - a

### multiply

    T multiply(T a)

  Compute this × a.

  Parameters:
    `a` - element to multiply
  Returns:
    a new element representing this × a

### divide

    T divide(T a)
             throws ArithmeticException

  Compute this ÷ a.

  Parameters:
    `a` - element to add
  Returns:
    a new element representing this ÷ a
  Throws:
    `ArithmeticException` - if a is the zero of the additive operation (i.e. additive identity)

### getField

    Field<T> getField()

  Get the `Field` to which the instance belongs.

  Returns:
    `Field` to which the instance belongs

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