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Code Issues Releases Wiki Activity

Format code.

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This commit is contained in:
Danila Fedorin
2017-07-30 21:11:32 -07:00
parent 03eb669eb3
commit a278e5bb9a
39 changed files with 695 additions and 561 deletions
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13
src/main/java/org/nwapw/abacus/plugin/ClassFinder.java
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@@ -20,9 +20,10 @@ public class ClassFinder {
/**
* Loads all the plugin classes from the given plugin folder.
*
* @param filePath the path for the plugin folder.
* @return the list of all loaded classes.
* @throws IOException thrown if an error occurred scanning the plugin folder.
* @throws IOException thrown if an error occurred scanning the plugin folder.
* @throws ClassNotFoundException thrown if the class listed in the file doesn't get loaded.
*/
public static List<Class<?>> loadJars(String filePath) throws IOException, ClassNotFoundException {
@@ -31,19 +32,20 @@ public class ClassFinder {
/**
* Loads all the plugin classes from the given plugin folder.
*
* @param pluginFolderPath the folder in which to look for plugins.
* @return the list of all loaded classes.
* @throws IOException thrown if an error occurred scanning the plugin folder.
* @throws IOException thrown if an error occurred scanning the plugin folder.
* @throws ClassNotFoundException thrown if the class listed in the file doesn't get loaded.
*/
public static List<Class<?>> loadJars(File pluginFolderPath) throws IOException, ClassNotFoundException {
ArrayList<Class<?>> toReturn = new ArrayList<>();
if(!pluginFolderPath.exists()) return toReturn;
if (!pluginFolderPath.exists()) return toReturn;
ArrayList<File> files = Files.walk(pluginFolderPath.toPath())
.map(Path::toFile)
.filter(f -> f.getName().endsWith(".jar"))
.collect(Collectors.toCollection(ArrayList::new));
for (File file : files){
for (File file : files) {
toReturn.addAll(loadJar(file));
}
return toReturn;
@@ -51,9 +53,10 @@ public class ClassFinder {
/**
* Loads the classes from a single path, given by the file.
*
* @param jarLocation the location of the jar to load.
* @return the list of loaded classes loaded from the jar.
* @throws IOException thrown if there was an error reading the file
* @throws IOException thrown if there was an error reading the file
* @throws ClassNotFoundException thrown if the class could not be loaded.
*/
public static List<Class<?>> loadJar(File jarLocation) throws IOException, ClassNotFoundException {

39
src/main/java/org/nwapw/abacus/plugin/Plugin.java
View File

@@ -39,10 +39,12 @@ public abstract class Plugin {
*/
private boolean enabled;
private Plugin(){ }
private Plugin() {
}
/**
* Creates a new plugin with the given PluginManager.
*
* @param manager the manager controlling this plugin.
*/
public Plugin(PluginManager manager) {
@@ -55,30 +57,34 @@ public abstract class Plugin {
/**
* Gets the list of functions provided by this plugin.
*
* @return the list of registered functions.
*/
public final Set<String> providedFunctions(){
public final Set<String> providedFunctions() {
return functions.keySet();
}
/**
* Gets the list of functions provided by this plugin.
*
* @return the list of registered functions.
*/
public final Set<String> providedOperators(){
public final Set<String> providedOperators() {
return operators.keySet();
}
/**
* Gets the list of all numbers provided by this plugin.
*
* @return the list of registered numbers.
*/
public final Set<String> providedNumbers(){
public final Set<String> providedNumbers() {
return numbers.keySet();
}
/**
* Gets a function under the given function name.
*
* @param functionName the name of the function to get
* @return the function, or null if this plugin doesn't provide it.
*/
@@ -88,6 +94,7 @@ public abstract class Plugin {
/**
* Gets an operator under the given operator name.
*
* @param operatorName the name of the operator to get.
* @return the operator, or null if this plugin doesn't provide it.
*/
@@ -97,10 +104,11 @@ public abstract class Plugin {
/**
* Gets the class under the given name.
*
* @param numberName the name of the class.
* @return the class, or null if the plugin doesn't provide it.
*/
public final Class<? extends NumberInterface> getNumber(String numberName){
public final Class<? extends NumberInterface> getNumber(String numberName) {
return numbers.get(numberName);
}
@@ -108,8 +116,8 @@ public abstract class Plugin {
* Enables the function, loading the necessary instances
* of functions.
*/
public final void enable(){
if(enabled) return;
public final void enable() {
if (enabled) return;
onEnable();
enabled = true;
}
@@ -118,8 +126,8 @@ public abstract class Plugin {
* Disables the plugin, clearing loaded data store by default
* and calling its disable() method.
*/
public final void disable(){
if(!enabled) return;
public final void disable() {
if (!enabled) return;
onDisable();
functions.clear();
operators.clear();
@@ -129,7 +137,8 @@ public abstract class Plugin {
/**
* To be used in load(). Registers a function abstract class with the
* plugin internally, which makes it accessible to the plugin manager.
* @param name the name to register by.
*
* @param name the name to register by.
* @param toRegister the function implementation.
*/
protected final void registerFunction(String name, Function toRegister) {
@@ -140,7 +149,8 @@ public abstract class Plugin {
* To be used in load(). Registers an operator abstract class
* with the plugin internally, which makes it accessible to
* the plugin manager.
* @param name the name of the operator.
*
* @param name the name of the operator.
* @param operator the operator to register.
*/
protected final void registerOperator(String name, Operator operator) {
@@ -152,10 +162,11 @@ public abstract class Plugin {
* with the plugin internally, which makes it possible
* for the user to select it as an "implementation" for the
* number that they would like to use.
* @param name the name to register it under.
*
* @param name the name to register it under.
* @param toRegister the class to register.
*/
protected final void registerNumber(String name, Class<? extends NumberInterface> toRegister){
protected final void registerNumber(String name, Class<? extends NumberInterface> toRegister) {
numbers.put(name, toRegister);
}
@@ -163,6 +174,7 @@ public abstract class Plugin {
* Searches the PluginManager for the given function name.
* This can be used by the plugins internally in order to call functions
* they do not provide.
*
* @param name the name for which to search
* @return the resulting function, or null if none was found for that name.
*/
@@ -174,6 +186,7 @@ public abstract class Plugin {
* Searches the PluginManager for the given operator name.
* This can be used by the plugins internally in order to call
* operations they do not provide.
*
* @param name the name for which to search
* @return the resulting operator, or null if none was found for that name.
*/

2
src/main/java/org/nwapw/abacus/plugin/PluginListener.java
View File

@@ -7,12 +7,14 @@ public interface PluginListener {
/**
* Called when the PluginManager loads plugins.
*
* @param manager the manager that fired the event.
*/
public void onLoad(PluginManager manager);
/**
* Called when the PluginManager unloads all its plugins.
*
* @param manager the manager that fired the event.
*/
public void onUnload(PluginManager manager);

62
src/main/java/org/nwapw/abacus/plugin/PluginManager.java
View File

@@ -56,7 +56,7 @@ public class PluginManager {
/**
* Creates a new plugin manager.
*/
public PluginManager(){
public PluginManager() {
loadedPluginClasses = new HashSet<>();
plugins = new HashSet<>();
cachedFunctions = new HashMap<>();
@@ -73,23 +73,24 @@ public class PluginManager {
* list of items of the type using the setFunction and getting the value
* of it is available via getFunction. If the value is contained
* in the cache, it returns the cached value instead.
* @param plugins the plugin list to search.
* @param cache the cache to use
*
* @param plugins the plugin list to search.
* @param cache the cache to use
* @param setFunction the function to retrieve a set of available T's from the plugin
* @param getFunction the function to get the T value under the given name
* @param name the name to search for
* @param <T> the type of element being search
* @param name the name to search for
* @param <T> the type of element being search
* @return the retrieved element, or null if it was not found.
*/
private static <T> T searchCached(Collection<Plugin> plugins, Map<String, T> cache,
java.util.function.Function<Plugin, Set<String>> setFunction,
java.util.function.BiFunction<Plugin, String, T> getFunction,
String name){
if(cache.containsKey(name)) return cache.get(name);
String name) {
if (cache.containsKey(name)) return cache.get(name);
T loadedValue = null;
for(Plugin plugin : plugins){
if(setFunction.apply(plugin).contains(name)){
for (Plugin plugin : plugins) {
if (setFunction.apply(plugin).contains(name)) {
loadedValue = getFunction.apply(plugin, name);
break;
}
@@ -98,39 +99,44 @@ public class PluginManager {
cache.put(name, loadedValue);
return loadedValue;
}
/**
* Gets a function under the given name.
*
* @param name the name of the function
* @return the function under the given name.
*/
public Function functionFor(String name){
public Function functionFor(String name) {
return searchCached(plugins, cachedFunctions, Plugin::providedFunctions, Plugin::getFunction, name);
}
/**
* Gets an operator under the given name.
*
* @param name the name of the operator.
* @return the operator under the given name.
*/
public Operator operatorFor(String name){
public Operator operatorFor(String name) {
return searchCached(plugins, cachedOperators, Plugin::providedOperators, Plugin::getOperator, name);
}
/**
* Gets a numer implementation under the given name.
*
* @param name the name of the implementation.
* @return the implementation class
*/
public Class<? extends NumberInterface> numberFor(String name){
public Class<? extends NumberInterface> numberFor(String name) {
return searchCached(plugins, cachedNumbers, Plugin::providedNumbers, Plugin::getNumber, name);
}
/**
* Adds an instance of Plugin that already has been instantiated.
*
* @param plugin the plugin to add.
*/
public void addInstantiated(Plugin plugin){
if(loadedPluginClasses.contains(plugin.getClass())) return;
public void addInstantiated(Plugin plugin) {
if (loadedPluginClasses.contains(plugin.getClass())) return;
plugins.add(plugin);
loadedPluginClasses.add(plugin.getClass());
}
@@ -138,10 +144,11 @@ public class PluginManager {
/**
* Instantiates a class of plugin, and adds it to this
* plugin manager.
*
* @param newClass the new class to instantiate.
*/
public void addClass(Class<?> newClass){
if(!Plugin.class.isAssignableFrom(newClass) || newClass == Plugin.class) return;
public void addClass(Class<?> newClass) {
if (!Plugin.class.isAssignableFrom(newClass) || newClass == Plugin.class) return;
try {
addInstantiated((Plugin) newClass.getConstructor(PluginManager.class).newInstance(this));
} catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
@@ -152,9 +159,9 @@ public class PluginManager {
/**
* Loads all the plugins in the PluginManager.
*/
public void load(){
for(Plugin plugin : plugins) plugin.enable();
for(Plugin plugin : plugins){
public void load() {
for (Plugin plugin : plugins) plugin.enable();
for (Plugin plugin : plugins) {
allFunctions.addAll(plugin.providedFunctions());
allOperators.addAll(plugin.providedOperators());
allNumbers.addAll(plugin.providedNumbers());
@@ -165,8 +172,8 @@ public class PluginManager {
/**
* Unloads all the plugins in the PluginManager.
*/
public void unload(){
for(Plugin plugin : plugins) plugin.disable();
public void unload() {
for (Plugin plugin : plugins) plugin.disable();
allFunctions.clear();
allOperators.clear();
allNumbers.clear();
@@ -176,13 +183,14 @@ public class PluginManager {
/**
* Reloads all the plugins in the PluginManager.
*/
public void reload(){
public void reload() {
unload();
reload();
}
/**
* Gets all the functions loaded by the Plugin Manager.
*
* @return the set of all functions that were loaded.
*/
public Set<String> getAllFunctions() {
@@ -191,6 +199,7 @@ public class PluginManager {
/**
* Gets all the operators loaded by the Plugin Manager.
*
* @return the set of all operators that were loaded.
*/
public Set<String> getAllOperators() {
@@ -199,6 +208,7 @@ public class PluginManager {
/**
* Gets all the number implementations loaded by the Plugin Manager
*
* @return the set of all implementations that were loaded
*/
public Set<String> getAllNumbers() {
@@ -207,18 +217,20 @@ public class PluginManager {
/**
* Adds a plugin change listener to this plugin manager.
*
* @param listener the listener to add.
*/
public void addListener(PluginListener listener){
public void addListener(PluginListener listener) {
listeners.add(listener);
}
/**
* Remove the plugin change listener from this plugin manager.
*
* @param listener the listener to remove.
*/
public void removeListener(PluginListener listener){
public void removeListener(PluginListener listener) {
listeners.remove(listener);
}
}

176
src/main/java/org/nwapw/abacus/plugin/StandardPlugin.java
View File

@@ -25,7 +25,7 @@ public class StandardPlugin extends Plugin {
@Override
protected NumberInterface applyInternal(NumberInterface[] params) {
NumberInterface sum = params[0];
for(int i = 1; i < params.length; i++){
for (int i = 1; i < params.length; i++) {
sum = sum.add(params[i]);
}
return sum;
@@ -42,7 +42,7 @@ public class StandardPlugin extends Plugin {
return params[0].subtract(params[1]);
}
});
public static final Operator OP_MULTIPLY = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX,1, new Function() {
public static final Operator OP_MULTIPLY = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length >= 1;
@@ -51,13 +51,13 @@ public class StandardPlugin extends Plugin {
@Override
protected NumberInterface applyInternal(NumberInterface[] params) {
NumberInterface product = params[0];
for(int i = 1; i < params.length; i++){
for (int i = 1; i < params.length; i++) {
product = product.multiply(params[i]);
}
return product;
}
});
public static final Operator OP_DIVIDE = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX,1, new Function() {
public static final Operator OP_DIVIDE = new Operator(OperatorAssociativity.LEFT, OperatorType.BINARY_INFIX, 1, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length >= 1;
@@ -66,23 +66,12 @@ public class StandardPlugin extends Plugin {
@Override
protected NumberInterface applyInternal(NumberInterface[] params) {
NumberInterface product = params[0];
for(int i = 1; i < params.length; i++){
for (int i = 1; i < params.length; i++) {
product = product.multiply(params[i]);
}
return product;
}
});
public static final Operator OP_CARET = new Operator(OperatorAssociativity.RIGHT, OperatorType.BINARY_INFIX, 2, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length == 2;
}
@Override
protected NumberInterface applyInternal(NumberInterface[] params) {
return FUNCTION_EXP.apply(FUNCTION_LN.apply(params[0]).multiply(params[1]));
}
});
public static final Operator OP_FACTORIAL = new Operator(OperatorAssociativity.RIGHT, OperatorType.UNARY_POSTFIX, 0, new Function() {
//private HashMap<Class<? extends NumberInterface>, ArrayList<NumberInterface>> storedList = new HashMap<Class<? extends NumberInterface>, ArrayList<NumberInterface>>();
@Override
@@ -92,13 +81,13 @@ public class StandardPlugin extends Plugin {
@Override
protected NumberInterface applyInternal(NumberInterface[] params) {
if(params[0].signum() == 0){
if (params[0].signum() == 0) {
return (new NaiveNumber(1)).promoteTo(params[0].getClass());
}
NumberInterface factorial = params[0];
NumberInterface multiplier = params[0];
//It is necessary to later prevent calls of factorial on anything but non-negative integers.
while((multiplier = multiplier.subtract(NaiveNumber.ONE.promoteTo(multiplier.getClass()))).signum() == 1){
while ((multiplier = multiplier.subtract(NaiveNumber.ONE.promoteTo(multiplier.getClass()))).signum() == 1) {
factorial = factorial.multiply(multiplier);
}
return factorial;
@@ -131,7 +120,7 @@ public class StandardPlugin extends Plugin {
boolean takeReciprocal = params[0].signum() == -1;
params[0] = FUNCTION_ABS.apply(params[0]);
NumberInterface sum = sumSeries(params[0], StandardPlugin::getExpSeriesTerm, getNTermsExp(getMaxError(params[0]), params[0]));
if(takeReciprocal){
if (takeReciprocal) {
sum = NaiveNumber.ONE.promoteTo(sum.getClass()).divide(sum);
}
return sum;
@@ -147,19 +136,18 @@ public class StandardPlugin extends Plugin {
protected NumberInterface applyInternal(NumberInterface[] params) {
NumberInterface param = params[0];
int powersOf2 = 0;
while(FUNCTION_ABS.apply(param.subtract(NaiveNumber.ONE.promoteTo(param.getClass()))).compareTo((new NaiveNumber(0.1)).promoteTo(param.getClass())) >= 0){
if(param.subtract(NaiveNumber.ONE.promoteTo(param.getClass())).signum() == 1) {
while (FUNCTION_ABS.apply(param.subtract(NaiveNumber.ONE.promoteTo(param.getClass()))).compareTo((new NaiveNumber(0.1)).promoteTo(param.getClass())) >= 0) {
if (param.subtract(NaiveNumber.ONE.promoteTo(param.getClass())).signum() == 1) {
param = param.divide(new NaiveNumber(2).promoteTo(param.getClass()));
powersOf2++;
if(param.subtract(NaiveNumber.ONE.promoteTo(param.getClass())).signum() != 1) {
if (param.subtract(NaiveNumber.ONE.promoteTo(param.getClass())).signum() != 1) {
break;
//No infinite loop for you.
}
}
else {
} else {
param = param.multiply(new NaiveNumber(2).promoteTo(param.getClass()));
powersOf2--;
if(param.subtract(NaiveNumber.ONE.promoteTo(param.getClass())).signum() != 1) {
if (param.subtract(NaiveNumber.ONE.promoteTo(param.getClass())).signum() != 1) {
break;
//No infinite loop for you.
}
@@ -174,14 +162,14 @@ public class StandardPlugin extends Plugin {
* @param x value at which the series is evaluated. 0 < x < 2. (x=2 is convergent but impractical.)
* @return the partial sum.
*/
private NumberInterface getLogPartialSum(NumberInterface x){
private NumberInterface getLogPartialSum(NumberInterface x) {
NumberInterface maxError = getMaxError(x);
x = x.subtract(NaiveNumber.ONE.promoteTo(x.getClass())); //Terms used are for log(x+1).
NumberInterface currentTerm = x, sum = x;
int n = 1;
while(FUNCTION_ABS.apply(currentTerm).compareTo(maxError) > 0){
while (FUNCTION_ABS.apply(currentTerm).compareTo(maxError) > 0) {
n++;
currentTerm = currentTerm.multiply(x).multiply((new NaiveNumber(n-1)).promoteTo(x.getClass())).divide((new NaiveNumber(n)).promoteTo(x.getClass())).negate();
currentTerm = currentTerm.multiply(x).multiply((new NaiveNumber(n - 1)).promoteTo(x.getClass())).divide((new NaiveNumber(n)).promoteTo(x.getClass())).negate();
sum = sum.add(currentTerm);
}
return sum;
@@ -192,7 +180,7 @@ public class StandardPlugin extends Plugin {
* @param number a number of the same type as the return type. (Used for precision.)
* @return the value of log(2) with the appropriate precision.
*/
private NumberInterface getLog2(NumberInterface number){
private NumberInterface getLog2(NumberInterface number) {
NumberInterface maxError = getMaxError(number);
//NumberInterface errorBound = (new NaiveNumber(1)).promoteTo(number.getClass());
//We'll use the series \sigma_{n >= 1) ((1/3^n + 1/4^n) * 1/n)
@@ -201,7 +189,7 @@ public class StandardPlugin extends Plugin {
NumberInterface a = (new NaiveNumber(1)).promoteTo(number.getClass()), b = a, c = a;
NumberInterface sum = NaiveNumber.ZERO.promoteTo(number.getClass());
int n = 0;
while(a.compareTo(maxError) >= 1){
while (a.compareTo(maxError) >= 1) {
n++;
a = a.divide((new NaiveNumber(3)).promoteTo(number.getClass()));
b = b.divide((new NaiveNumber(4)).promoteTo(number.getClass()));
@@ -211,6 +199,17 @@ public class StandardPlugin extends Plugin {
return sum;
}
};
public static final Operator OP_CARET = new Operator(OperatorAssociativity.RIGHT, OperatorType.BINARY_INFIX, 2, new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
return params.length == 2;
}
@Override
protected NumberInterface applyInternal(NumberInterface[] params) {
return FUNCTION_EXP.apply(FUNCTION_LN.apply(params[0]).multiply(params[1]));
}
});
public static final Function FUNCTION_SQRT = new Function() {
@Override
protected boolean matchesParams(NumberInterface[] params) {
@@ -227,6 +226,65 @@ public class StandardPlugin extends Plugin {
super(manager);
}
/**
* Returns the nth term of the Taylor series (centered at 0) of e^x
*
* @param n the term required (n >= 0).
* @param x the real number at which the series is evaluated.
* @return the nth term of the series.
*/
private static NumberInterface getExpSeriesTerm(int n, NumberInterface x) {
return x.intPow(n).divide(OP_FACTORIAL.getFunction().apply((new NaiveNumber(n)).promoteTo(x.getClass())));
}
/**
* Returns the number of terms needed to evaluate the exponential function (at x)
* such that the error is at most maxError.
*
* @param maxError Maximum error permissible (This should probably be positive.)
* @param x where the function is evaluated.
* @return the number of terms needed to evaluated the exponential function.
*/
private static int getNTermsExp(NumberInterface maxError, NumberInterface x) {
//We need n such that |x^(n+1)| <= (n+1)! * maxError
//The variables LHS and RHS refer to the above inequality.
int n = 0;
x = FUNCTION_ABS.apply(x);
NumberInterface LHS = x, RHS = maxError;
while (LHS.compareTo(RHS) > 0) {
n++;
LHS = LHS.multiply(x);
RHS = RHS.multiply(new NaiveNumber(n + 1).promoteTo(RHS.getClass()));
}
return n;
}
/**
* Returns a partial sum of a series whose terms are given by the nthTermFunction, evaluated at x.
*
* @param x the value at which the series is evaluated.
* @param nthTermFunction the function that returns the nth term of the series, in the format term(x, n).
* @param n the number of terms in the partial sum.
* @return the value of the partial sum that has the same class as x.
*/
private static NumberInterface sumSeries(NumberInterface x, BiFunction<Integer, NumberInterface, NumberInterface> nthTermFunction, int n) {
NumberInterface sum = NaiveNumber.ZERO.promoteTo(x.getClass());
for (int i = 0; i <= n; i++) {
sum = sum.add(nthTermFunction.apply(i, x));
}
return sum;
}
/**
* Returns the maximum error based on the precision of the class of number.
*
* @param number Any instance of the NumberInterface in question (should return an appropriate precision).
* @return the maximum error.
*/
private static NumberInterface getMaxError(NumberInterface number) {
return (new NaiveNumber(10)).promoteTo(number.getClass()).intPow(-number.getMaxPrecision());
}
@Override
public void onEnable() {
registerNumber("naive", NaiveNumber.class);
@@ -242,7 +300,7 @@ public class StandardPlugin extends Plugin {
registerFunction("abs", FUNCTION_ABS);
registerFunction("exp", FUNCTION_EXP);
registerFunction("ln", FUNCTION_LN);
registerFunction("sqrt",FUNCTION_SQRT);
registerFunction("sqrt", FUNCTION_SQRT);
}
@Override
@@ -250,60 +308,4 @@ public class StandardPlugin extends Plugin {
}
/**
* Returns the nth term of the Taylor series (centered at 0) of e^x
* @param n the term required (n >= 0).
* @param x the real number at which the series is evaluated.
* @return the nth term of the series.
*/
private static NumberInterface getExpSeriesTerm(int n, NumberInterface x){
return x.intPow(n).divide(OP_FACTORIAL.getFunction().apply((new NaiveNumber(n)).promoteTo(x.getClass())));
}
/**
* Returns the number of terms needed to evaluate the exponential function (at x)
* such that the error is at most maxError.
* @param maxError Maximum error permissible (This should probably be positive.)
* @param x where the function is evaluated.
* @return the number of terms needed to evaluated the exponential function.
*/
private static int getNTermsExp(NumberInterface maxError, NumberInterface x) {
//We need n such that |x^(n+1)| <= (n+1)! * maxError
//The variables LHS and RHS refer to the above inequality.
int n = 0;
x = FUNCTION_ABS.apply(x);
NumberInterface LHS = x, RHS = maxError;
while (LHS.compareTo(RHS) > 0) {
n++;
LHS = LHS.multiply(x);
RHS = RHS.multiply(new NaiveNumber(n + 1).promoteTo(RHS.getClass()));
}
return n;
}
/**
* Returns a partial sum of a series whose terms are given by the nthTermFunction, evaluated at x.
* @param x the value at which the series is evaluated.
* @param nthTermFunction the function that returns the nth term of the series, in the format term(x, n).
* @param n the number of terms in the partial sum.
* @return the value of the partial sum that has the same class as x.
*/
private static NumberInterface sumSeries(NumberInterface x, BiFunction<Integer, NumberInterface, NumberInterface> nthTermFunction, int n){
NumberInterface sum = NaiveNumber.ZERO.promoteTo(x.getClass());
for(int i = 0; i <= n; i++){
sum = sum.add(nthTermFunction.apply(i, x));
}
return sum;
}
/**
* Returns the maximum error based on the precision of the class of number.
* @param number Any instance of the NumberInterface in question (should return an appropriate precision).
* @return the maximum error.
*/
private static NumberInterface getMaxError(NumberInterface number){
return (new NaiveNumber(10)).promoteTo(number.getClass()).intPow(-number.getMaxPrecision());
}
}