edu.vub.at.objects
Interface Fraction

 Fraction

ATFraction is the public interface to a native AmbientTalk fraction (a floating point value).

Author:

tvc

Method Summary

Fraction	abs() Returns the absolute value of a fraction.
Fraction	dec() Returns the fraction minus 1.
Fraction	inc() Returns the fraction plus 1.

Methods inherited from interface edu.vub.at.objects.Numeric

/, =, >=, >, <=>, <=, <, -, !=, +, *, addFraction, addNumber, ceiling, cos, divideFraction, divideNumber, expt, floor, gequalsFraction, gequalsNumber, log, round, sin, sqrt, subtractFraction, subtractNumber, tan, timesFraction, timesNumber, toText

Methods inherited from interface edu.vub.at.objects.AbstractGrammar

freeVariables

Methods inherited from interface edu.vub.at.objects.Object

super

Method Detail

inc

Fraction inc()

Returns the fraction plus 1.

Returns:

an ATFraction resulting of adding 1 to the receiver.

dec

Fraction dec()

Returns the fraction minus 1.

Returns:

an ATFraction resulting of subtracting 1 to the receiver.

abs

Fraction abs()

Returns the absolute value of a fraction.

More specifically:

• If the receiver >= 0, the receiver is returned.
• If the receiver < 0, the negation of the receiver is returned.

Returns:

the absolute value of the receiver.