Mega Code Archive
Fraction
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/*
* ========================================================================
*
* Copyright 2005 Tim O'Brien.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ========================================================================
*/
import org.apache.commons.lang.math.Fraction;
public class MainClass {
public static void main(String[] args) {
Fraction numer1 = Fraction.getFraction( 3, 4 );
Fraction numer2 = Fraction.getFraction( 51, 3509 );
Fraction numerator = numer1.multiplyBy( numer2 );
Fraction denominator = Fraction.getFraction( 41, 59 );
Fraction result = numerator.divideBy( denominator );
System.out.println( "Expression as Fraction: " + result.reduce().toString() );
System.out.println( "Expression as double: " + result.doubleValue() );
Fraction test1 = Fraction.getFraction( 1, 2 );
Fraction test2 = Fraction.getFraction( 2, 4 );
System.out.println( "1/2 equals 2/4: " + test1.equals( test2 ) );
double value = Fraction.getFraction( 10000, 100000 ).pow( 6 ).doubleValue();
double reduced = Fraction.getFraction( 10000, 100000 ).reduce().pow( 6 ).doubleValue();
System.out.println( "Fraction to pow 6 without reduction: " + value );
System.out.println( "Fraction to pow 6 with reduction: " + reduced );
}
}
Expression as Fraction: 9027/575476
Expression as double: 0.015686145034719084
1/2 equals 2/4: false
Fraction to pow 6 without reduction: 1.0E-6
Fraction to pow 6 with reduction: 1.0E-6
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