本文整理汇总了Java中org.apache.commons.math3.fraction.Fraction类的典型用法代码示例。如果您正苦于以下问题:Java Fraction类的具体用法?Java Fraction怎么用?Java Fraction使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
Fraction类属于org.apache.commons.math3.fraction包,在下文中一共展示了Fraction类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。
示例1: setUp
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Before
public void setUp() throws FractionConversionException {
javaMap.put(50, new Fraction(100.0));
javaMap.put(75, new Fraction(75.0));
javaMap.put(25, new Fraction(500.0));
javaMap.put(Integer.MAX_VALUE, new Fraction(Integer.MAX_VALUE));
javaMap.put(0, new Fraction(-1.0));
javaMap.put(1, new Fraction(0.0));
javaMap.put(33, new Fraction(-0.1));
javaMap.put(23234234, new Fraction(-242343.0));
javaMap.put(23321, new Fraction (Integer.MIN_VALUE));
javaMap.put(-4444, new Fraction(332.0));
javaMap.put(-1, new Fraction(-2323.0));
javaMap.put(Integer.MIN_VALUE, new Fraction(44.0));
/* Add a few more to cause the table to rehash */
javaMap.putAll(generate());
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:20,代码来源:OpenIntToFieldTest.java
示例2: permuteRows
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
/** Returns the result of applying the given row permutation to the matrix */
protected FieldMatrix<Fraction> permuteRows(FieldMatrix<Fraction> matrix, int[] permutation) {
if (!matrix.isSquare()) {
throw new NonSquareMatrixException(matrix.getRowDimension(),
matrix.getColumnDimension());
}
if (matrix.getRowDimension() != permutation.length) {
throw new DimensionMismatchException(matrix.getRowDimension(), permutation.length);
}
int n = matrix.getRowDimension();
int m = matrix.getColumnDimension();
Fraction out[][] = new Fraction[m][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
out[i][j] = matrix.getEntry(permutation[i], j);
}
}
return new Array2DRowFieldMatrix<Fraction>(out);
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:20,代码来源:FieldMatrixImplTest.java
示例3: testRemove2
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testRemove2() {
OpenIntToFieldHashMap<Fraction> map = createFromJavaMap(field);
int mapSize = javaMap.size();
int count = 0;
Set<Integer> keysInMap = new HashSet<Integer>(javaMap.keySet());
for (Map.Entry<Integer, Fraction> mapEntry : javaMap.entrySet()) {
keysInMap.remove(mapEntry.getKey());
map.remove(mapEntry.getKey());
Assert.assertEquals(--mapSize, map.size());
Assert.assertTrue(field.getZero().equals(map.get(mapEntry.getKey())));
if (count++ > 5)
break;
}
/* Ensure that put and get still work correctly after removals */
assertPutAndGet(map, mapSize, keysInMap);
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:19,代码来源:OpenIntToFieldTest.java
示例4: testIterator
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testIterator() {
OpenIntToFieldHashMap<Fraction> map = createFromJavaMap(field);
OpenIntToFieldHashMap<Fraction>.Iterator iterator = map.iterator();
for (int i = 0; i < map.size(); ++i) {
Assert.assertTrue(iterator.hasNext());
iterator.advance();
int key = iterator.key();
Assert.assertTrue(map.containsKey(key));
Assert.assertEquals(javaMap.get(key), map.get(key));
Assert.assertEquals(javaMap.get(key), iterator.value());
Assert.assertTrue(javaMap.containsKey(key));
}
Assert.assertFalse(iterator.hasNext());
try {
iterator.advance();
Assert.fail("an exception should have been thrown");
} catch (NoSuchElementException nsee) {
// expected
}
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:22,代码来源:OpenIntToFieldTest.java
示例5: testPutKeysWithCollisions
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
/**
* Regression test for a bug in findInsertionIndex where the hashing in the second probing
* loop was inconsistent with the first causing duplicate keys after the right sequence
* of puts and removes.
*/
@Test
public void testPutKeysWithCollisions() {
OpenIntToFieldHashMap<Fraction> map = new OpenIntToFieldHashMap<Fraction>(field);
int key1 = -1996012590;
Fraction value1 = new Fraction(1);
map.put(key1, value1);
int key2 = 835099822;
map.put(key2, value1);
int key3 = 1008859686;
map.put(key3, value1);
Assert.assertEquals(value1, map.get(key3));
Assert.assertEquals(3, map.size());
map.remove(key2);
Fraction value2 = new Fraction(2);
map.put(key3, value2);
Assert.assertEquals(value2, map.get(key3));
Assert.assertEquals(2, map.size());
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:25,代码来源:OpenIntToFieldTest.java
示例6: testPutKeysWithCollision2
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
/**
* Similar to testPutKeysWithCollisions() but exercises the codepaths in a slightly
* different manner.
*/
@Test
public void testPutKeysWithCollision2() {
OpenIntToFieldHashMap<Fraction>map = new OpenIntToFieldHashMap<Fraction>(field);
int key1 = 837989881;
Fraction value1 = new Fraction(1);
map.put(key1, value1);
int key2 = 476463321;
map.put(key2, value1);
Assert.assertEquals(2, map.size());
Assert.assertEquals(value1, map.get(key2));
map.remove(key1);
Fraction value2 = new Fraction(2);
map.put(key2, value2);
Assert.assertEquals(1, map.size());
Assert.assertEquals(value2, map.get(key2));
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:22,代码来源:OpenIntToFieldTest.java
示例7: testOuterProduct
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testOuterProduct() {
final SparseFieldVector<Fraction> u
= new SparseFieldVector<Fraction>(FractionField.getInstance(),
new Fraction[] {new Fraction(1),
new Fraction(2),
new Fraction(-3)});
final SparseFieldVector<Fraction> v
= new SparseFieldVector<Fraction>(FractionField.getInstance(),
new Fraction[] {new Fraction(4),
new Fraction(-2)});
final FieldMatrix<Fraction> uv = u.outerProduct(v);
final double tol = Math.ulp(1d);
Assert.assertEquals(new Fraction(4).doubleValue(), uv.getEntry(0, 0).doubleValue(), tol);
Assert.assertEquals(new Fraction(-2).doubleValue(), uv.getEntry(0, 1).doubleValue(), tol);
Assert.assertEquals(new Fraction(8).doubleValue(), uv.getEntry(1, 0).doubleValue(), tol);
Assert.assertEquals(new Fraction(-4).doubleValue(), uv.getEntry(1, 1).doubleValue(), tol);
Assert.assertEquals(new Fraction(-12).doubleValue(), uv.getEntry(2, 0).doubleValue(), tol);
Assert.assertEquals(new Fraction(6).doubleValue(), uv.getEntry(2, 1).doubleValue(), tol);
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:23,代码来源:SparseFieldVectorTest.java
示例8: testOuterProduct
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testOuterProduct() {
final ArrayFieldVector<Fraction> u
= new ArrayFieldVector<Fraction>(FractionField.getInstance(),
new Fraction[] {new Fraction(1),
new Fraction(2),
new Fraction(-3)});
final ArrayFieldVector<Fraction> v
= new ArrayFieldVector<Fraction>(FractionField.getInstance(),
new Fraction[] {new Fraction(4),
new Fraction(-2)});
final FieldMatrix<Fraction> uv = u.outerProduct(v);
final double tol = Math.ulp(1d);
Assert.assertEquals(new Fraction(4).doubleValue(), uv.getEntry(0, 0).doubleValue(), tol);
Assert.assertEquals(new Fraction(-2).doubleValue(), uv.getEntry(0, 1).doubleValue(), tol);
Assert.assertEquals(new Fraction(8).doubleValue(), uv.getEntry(1, 0).doubleValue(), tol);
Assert.assertEquals(new Fraction(-4).doubleValue(), uv.getEntry(1, 1).doubleValue(), tol);
Assert.assertEquals(new Fraction(-12).doubleValue(), uv.getEntry(2, 0).doubleValue(), tol);
Assert.assertEquals(new Fraction(6).doubleValue(), uv.getEntry(2, 1).doubleValue(), tol);
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:23,代码来源:ArrayFieldVectorTest.java
示例9: testOperate
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
/** test operate */
@Test
public void testOperate() {
FieldMatrix<Fraction> m = createSparseMatrix(id);
assertClose("identity operate", testVector, m.operate(testVector),
entryTolerance);
assertClose("identity operate", testVector, m.operate(
new ArrayFieldVector<Fraction>(testVector)).toArray(), entryTolerance);
m = createSparseMatrix(bigSingular);
try {
m.operate(testVector);
Assert.fail("Expecting illegalArgumentException");
} catch (MathIllegalArgumentException ex) {
// ignored
}
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:17,代码来源:SparseFieldMatrixTest.java
示例10: testGetSubMatrix
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testGetSubMatrix() {
FieldMatrix<Fraction> m = new BlockFieldMatrix<Fraction>(subTestData);
checkGetSubMatrix(m, subRows23Cols00, 2 , 3 , 0, 0);
checkGetSubMatrix(m, subRows00Cols33, 0 , 0 , 3, 3);
checkGetSubMatrix(m, subRows01Cols23, 0 , 1 , 2, 3);
checkGetSubMatrix(m, subRows02Cols13, new int[] { 0, 2 }, new int[] { 1, 3 });
checkGetSubMatrix(m, subRows03Cols12, new int[] { 0, 3 }, new int[] { 1, 2 });
checkGetSubMatrix(m, subRows03Cols123, new int[] { 0, 3 }, new int[] { 1, 2, 3 });
checkGetSubMatrix(m, subRows20Cols123, new int[] { 2, 0 }, new int[] { 1, 2, 3 });
checkGetSubMatrix(m, subRows31Cols31, new int[] { 3, 1 }, new int[] { 3, 1 });
checkGetSubMatrix(m, subRows31Cols31, new int[] { 3, 1 }, new int[] { 3, 1 });
checkGetSubMatrix(m, null, 1, 0, 2, 4);
checkGetSubMatrix(m, null, -1, 1, 2, 2);
checkGetSubMatrix(m, null, 1, 0, 2, 2);
checkGetSubMatrix(m, null, 1, 0, 2, 4);
checkGetSubMatrix(m, null, new int[] {}, new int[] { 0 });
checkGetSubMatrix(m, null, new int[] { 0 }, new int[] { 4 });
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:20,代码来源:BlockFieldMatrixTest.java
示例11: testGetSetMatrixLarge
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testGetSetMatrixLarge() {
int n = 3 * BlockFieldMatrix.BLOCK_SIZE;
FieldMatrix<Fraction> m =
new BlockFieldMatrix<Fraction>(FractionField.getInstance(), n, n);
FieldMatrix<Fraction> sub =
new BlockFieldMatrix<Fraction>(FractionField.getInstance(), n - 4, n - 4).scalarAdd(new Fraction(1));
m.setSubMatrix(sub.getData(), 2, 2);
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
if ((i < 2) || (i > n - 3) || (j < 2) || (j > n - 3)) {
Assert.assertEquals(new Fraction(0), m.getEntry(i, j));
} else {
Assert.assertEquals(new Fraction(1), m.getEntry(i, j));
}
}
}
Assert.assertEquals(sub, m.getSubMatrix(2, n - 3, 2, n - 3));
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:21,代码来源:BlockFieldMatrixTest.java
示例12: testCopySubMatrix
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testCopySubMatrix() {
FieldMatrix<Fraction> m = new BlockFieldMatrix<Fraction>(subTestData);
checkCopy(m, subRows23Cols00, 2 , 3 , 0, 0);
checkCopy(m, subRows00Cols33, 0 , 0 , 3, 3);
checkCopy(m, subRows01Cols23, 0 , 1 , 2, 3);
checkCopy(m, subRows02Cols13, new int[] { 0, 2 }, new int[] { 1, 3 });
checkCopy(m, subRows03Cols12, new int[] { 0, 3 }, new int[] { 1, 2 });
checkCopy(m, subRows03Cols123, new int[] { 0, 3 }, new int[] { 1, 2, 3 });
checkCopy(m, subRows20Cols123, new int[] { 2, 0 }, new int[] { 1, 2, 3 });
checkCopy(m, subRows31Cols31, new int[] { 3, 1 }, new int[] { 3, 1 });
checkCopy(m, subRows31Cols31, new int[] { 3, 1 }, new int[] { 3, 1 });
checkCopy(m, null, 1, 0, 2, 4);
checkCopy(m, null, -1, 1, 2, 2);
checkCopy(m, null, 1, 0, 2, 2);
checkCopy(m, null, 1, 0, 2, 4);
checkCopy(m, null, new int[] {}, new int[] { 0 });
checkCopy(m, null, new int[] { 0 }, new int[] { 4 });
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:21,代码来源:BlockFieldMatrixTest.java
示例13: testGetSetRowMatrixLarge
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testGetSetRowMatrixLarge() {
int n = 3 * BlockFieldMatrix.BLOCK_SIZE;
FieldMatrix<Fraction> m =
new BlockFieldMatrix<Fraction>(FractionField.getInstance(), n, n);
FieldMatrix<Fraction> sub =
new BlockFieldMatrix<Fraction>(FractionField.getInstance(), 1, n).scalarAdd(new Fraction(1));
m.setRowMatrix(2, sub);
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
if (i != 2) {
Assert.assertEquals(new Fraction(0), m.getEntry(i, j));
} else {
Assert.assertEquals(new Fraction(1), m.getEntry(i, j));
}
}
}
Assert.assertEquals(sub, m.getRowMatrix(2));
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:22,代码来源:BlockFieldMatrixTest.java
示例14: testGetSetColumnLarge
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testGetSetColumnLarge() {
int n = 3 * BlockFieldMatrix.BLOCK_SIZE;
FieldMatrix<Fraction> m = new BlockFieldMatrix<Fraction>(FractionField.getInstance(), n, n);
Fraction[] sub = new Fraction[n];
Arrays.fill(sub, new Fraction(1));
m.setColumn(2, sub);
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
if (j != 2) {
Assert.assertEquals(new Fraction(0), m.getEntry(i, j));
} else {
Assert.assertEquals(new Fraction(1), m.getEntry(i, j));
}
}
}
checkArrays(sub, m.getColumn(2));
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:21,代码来源:BlockFieldMatrixTest.java
示例15: testPremultiplyVector
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
/** test preMultiply by vector */
@Test
public void testPremultiplyVector() {
FieldMatrix<Fraction> m = createSparseMatrix(testData);
assertClose("premultiply", m.preMultiply(testVector), preMultTest,
normTolerance);
assertClose("premultiply", m.preMultiply(
new ArrayFieldVector<Fraction>(testVector).getData()), preMultTest, normTolerance);
m = createSparseMatrix(bigSingular);
try {
m.preMultiply(testVector);
Assert.fail("expecting MathIllegalArgumentException");
} catch (MathIllegalArgumentException ex) {
// ignored
}
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:17,代码来源:SparseFieldMatrixTest.java
示例16: testMultiply
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
/** test multiply */
@Test
public void testMultiply() {
SparseFieldMatrix<Fraction> m = createSparseMatrix(testData);
SparseFieldMatrix<Fraction> mInv = createSparseMatrix(testDataInv);
SparseFieldMatrix<Fraction> identity = createSparseMatrix(id);
SparseFieldMatrix<Fraction> m2 = createSparseMatrix(testData2);
assertClose("inverse multiply", m.multiply(mInv), identity,
entryTolerance);
assertClose("inverse multiply", m.multiply(new Array2DRowFieldMatrix<Fraction>(FractionField.getInstance(), testDataInv)), identity,
entryTolerance);
assertClose("inverse multiply", mInv.multiply(m), identity,
entryTolerance);
assertClose("identity multiply", m.multiply(identity), m,
entryTolerance);
assertClose("identity multiply", identity.multiply(mInv), mInv,
entryTolerance);
assertClose("identity multiply", m2.multiply(identity), m2,
entryTolerance);
try {
m.multiply(createSparseMatrix(bigSingular));
Assert.fail("Expecting illegalArgumentException");
} catch (MathIllegalArgumentException ex) {
// ignored
}
}
开发者ID:Quanticol,项目名称:CARMA,代码行数:27,代码来源:SparseFieldMatrixTest.java
示例17: subtract
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Override
public SchemeNumber subtract(SchemeNumber number) {
if (number.typeOf(SchemeInteger.class)) {
return new SchemeInteger(this.getValue() - ((SchemeInteger) number).getValue());
} else if (number.typeOf(SchemeFloat.class)) {
return new SchemeFloat(this.getValue() - ((SchemeFloat) number).getValue());
} else {
// number is of type SchemeFraction
return new SchemeFraction(new Fraction(this.getValue()).subtract(((SchemeFraction) number).getValue()));
}
}
开发者ID:apophis90,项目名称:JScheme,代码行数:12,代码来源:SchemeInteger.java
示例18: divide
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Override
public SchemeNumber divide(SchemeNumber number) {
if (number.typeOf(SchemeInteger.class)) {
return new SchemeFraction(this.getValue(), ((SchemeInteger) number).getValue());
} else if (number.typeOf(SchemeFloat.class)) {
return new SchemeFloat(this.getValue() / ((SchemeFloat) number).getValue());
} else {
// number is of type SchemeFraction
return new SchemeFraction(new Fraction(this.getValue()).divide(((SchemeFraction) number).getValue()));
}
}
开发者ID:apophis90,项目名称:JScheme,代码行数:12,代码来源:SchemeInteger.java
示例19: absolute
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Override
public SchemeNumber absolute() {
if (this.getValue().compareTo(new Fraction(0)) == 1) {
return new SchemeFraction(this.getValue());
} else {
return this.multiply(new SchemeInteger(-1));
}
}
开发者ID:apophis90,项目名称:JScheme,代码行数:9,代码来源:SchemeFraction.java
示例20: testAddFractions
import org.apache.commons.math3.fraction.Fraction; //导入依赖的package包/类
@Test
public void testAddFractions() {
Fraction fraction1 = new Fraction(1, 2);
Fraction fraction2 = new Fraction(1, 2);
Fraction result = fraction1.add(fraction2);
assertThat(result.toString(), equalTo("1"));
}
开发者ID:apophis90,项目名称:JScheme,代码行数:9,代码来源:ApacheCommonsFractionLearningTest.java
注:本文中的org.apache.commons.math3.fraction.Fraction类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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