MullerSolver2Test (Commons Math 3.2 Test API)

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org.apache.commons.math3.analysis.solvers
Class MullerSolver2Test

java.lang.Object
  org.apache.commons.math3.analysis.solvers.MullerSolver2Test

public final class MullerSolver2Test
extends Object
extends Object

Test case for Muller solver.

Muller's method converges almost quadratically near roots, but it can be very slow in regions far away from zeros. Test runs show that for reasonably good initial values, for a default absolute accuracy of 1E-6, it generally takes 5 to 10 iterations for the solver to converge.

Tests for the exponential function illustrate the situations where Muller solver performs poorly.

Version:: $Id$

Constructor Summary
`MullerSolver2Test()`

Method Summary
`void`	`testExpm1Function()` Test of solver for the exponential function.
`void`	`testParameters()` Test of parameters for the solver.
`void`	`testQuinticFunction()` Test of solver for the quintic function.
`void`	`testSinFunction()` Test of solver for the sine function.

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

Constructor Detail

MullerSolver2Test

public MullerSolver2Test()

Method Detail

testSinFunction

public void testSinFunction()

Test of solver for the sine function.

testQuinticFunction

public void testQuinticFunction()

Test of solver for the quintic function.

testExpm1Function

public void testExpm1Function()

Test of solver for the exponential function.

It takes 25 to 50 iterations for the last two tests to converge.

testParameters

public void testParameters()

Test of parameters for the solver.