LaguerreSolverTest (Commons Math 1.2 Test API)

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org.apache.commons.math.analysis
Class LaguerreSolverTest

java.lang.Object
  junit.framework.Assert
      junit.framework.TestCase
          org.apache.commons.math.analysis.LaguerreSolverTest

All Implemented Interfaces:: junit.framework.Test

public final class LaguerreSolverTest
extends junit.framework.TestCase
extends junit.framework.TestCase

Testcase for Laguerre solver.

Laguerre's method is very efficient in solving polynomials. Test runs show that for a default absolute accuracy of 1E-6, it generally takes less than 5 iterations to find one root, provided solveAll() is not invoked, and 15 to 20 iterations to find all roots for quintic function.

Version:: $Revision$ $Date$

Constructor Summary
`LaguerreSolverTest()`

Method Summary
`void`	`testLinearFunction()` Test of solver for the linear function.
`void`	`testParameters()` Test of parameters for the solver.
`void`	`testQuadraticFunction()` Test of solver for the quadratic function.
`void`	`testQuinticFunction()` Test of solver for the quintic function.
`void`	`testQuinticFunction2()` Test of solver for the quintic function using solveAll().

Methods inherited from class junit.framework.TestCase
`countTestCases, createResult, getName, run, run, runBare, runTest, setName, setUp, tearDown, toString`

Methods inherited from class junit.framework.Assert
`assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, fail, fail, failNotEquals, failNotSame, failSame`

Methods inherited from class junit.framework.Assert

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, fail, fail, failNotEquals, failNotSame, failSame

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

LaguerreSolverTest

public LaguerreSolverTest()

Method Detail

testLinearFunction

public void testLinearFunction()
                        throws org.apache.commons.math.MathException

Test of solver for the linear function.

Throws:: org.apache.commons.math.MathException

testQuadraticFunction

public void testQuadraticFunction()
                           throws org.apache.commons.math.MathException

Test of solver for the quadratic function.

Throws:: org.apache.commons.math.MathException

testQuinticFunction

public void testQuinticFunction()
                         throws org.apache.commons.math.MathException

Test of solver for the quintic function.

Throws:: org.apache.commons.math.MathException

testQuinticFunction2

public void testQuinticFunction2()
                          throws org.apache.commons.math.MathException

Test of solver for the quintic function using solveAll().

Throws:: org.apache.commons.math.MathException

testParameters

public void testParameters()
                    throws java.lang.Exception

Test of parameters for the solver.

Throws:: java.lang.Exception