net.jinx.slowmath
Class MathUtil

java.lang.Object
  net.jinx.slowmath.MathUtil

public class MathUtil
extends java.lang.Object

Programs using the math library should construct their initial values via this class. It allows parsing data in a type-neutral way. This way, you can change a single line of code in your program (or use a command-line switch), and it changes the precision of the whole system.

API Stability: Beta.

Method Summary

static Real	e()
static void	main(java.lang.String[] args) Performs a test of this library.
static Real	negOne()
static Real	one()
static Real	oneHalf()
static Real	parseReal(java.lang.String s) Parses a value from the String.
static Vector	parseVector(java.lang.String s) Parses a Vector from the String.
static Real	pi()
static void	setType(java.lang.String type) Sets what type this class should use to construct new Real instances.
static Real	two()
static Real	wrapDouble(double v) Constructs a type-neutral Real for the given double.
static Real	wrapLong(long v) Wraps a long in a Real in a type-neutral manner.
static Real	zero()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

main

public static void main(java.lang.String[] args)

Performs a test of this library.

setType

public static void setType(java.lang.String type)

Sets what type this class should use to construct new Real instances. This will affect the results of the parseReal(String) method.

This will only affect the current thread and is inherited by any Threads it creates.

Parameters:

type - right now, this can be either "float" or "double".

wrapDouble

public static Real wrapDouble(double v)

Constructs a type-neutral Real for the given double.

Parameters:

v - the double value.

wrapLong

public static Real wrapLong(long v)

Wraps a long in a Real in a type-neutral manner.

Parameters:

v - the long value.

Returns:

the Real wrapping v.

parseReal

public static Real parseReal(java.lang.String s)

Parses a value from the String. This will generate Real instances in a type-neutral manner.

Parameters:

s - the String to parse.

parseVector

public static Vector parseVector(java.lang.String s)

Parses a Vector from the String. This will generate Real instances in a type-neutral manner.

Parameters:

s - the String to parse.

Throws:

java.lang.IllegalArgumentException - if s has less than or more than three elements encoded in it.

zero

public static Real zero()

one

public static Real one()

oneHalf

public static Real oneHalf()

negOne

public static Real negOne()

two

public static Real two()

e

public static Real e()

pi

public static Real pi()