com.elikill58.negativity.api.maths.mathcollection

Class NumberTheory

java.lang.Object

com.elikill58.negativity.api.maths.mathcollection.NumberTheory

public final class NumberTheory
extends Object

NumberTheory - summation / products etc...

Constructor Summary

Constructors

Constructor and Description
NumberTheory()

Method Summary

Modifier and Type	Method and Description
static double	convOthBase2Decimal(String numberLiteral, int numeralSystemBase) Other base (base between 1 and 36) number literal conversion to decimal number.
static int	digitIndex(char digitChar) Digit index based on digit character for numeral systems with base between 1 and 36.
static double	max(double a, double b)
static double	primeTest(double n) Prime test
static boolean	primeTest(long n) Prime test

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberTheory

public NumberTheory()

Method Detail

max

public static final double max(double a,
                               double b)

primeTest

public static final boolean primeTest(long n)

Prime test

Parameters:

n - The number to be tested.

Returns:

true if number is prime, otherwise false

primeTest

public static final double primeTest(double n)

Prime test

Parameters:

n - The number to be tested.

Returns:

true if number is prime, otherwise false

digitIndex

public static final int digitIndex(char digitChar)

Digit index based on digit character for numeral systems with base between 1 and 36.

Parameters:

digitChar - Digit character (lower or upper case) representing digit in numeral systems with base between 1 and 36. Digits: 0:0, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8, 9:9, 10:A, 11:B, 12:C, 13:D, 14:E, 15:F, 16:G, 17:H, 18:I, 19:J, 20:K, 21:L, 22:M, 23:N, 24:O, 25:P, 26:Q, 27:R, 28:S, 29:T, 30:U, 31:V, 32:W, 33:X, 34:Y, 35:Z

Returns:

Returns digit index if digit char was recognized, otherwise returns -1.

convOthBase2Decimal

public static final double convOthBase2Decimal(String numberLiteral,
                                               int numeralSystemBase)

Other base (base between 1 and 36) number literal conversion to decimal number.

Parameters:

numberLiteral - Number literal in given numeral system with base between 1 and 36. Digits: 0:0, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8, 9:9, 10:A, 11:B, 12:C, 13:D, 14:E, 15:F, 16:G, 17:H, 18:I, 19:J, 20:K, 21:L, 22:M, 23:N, 24:O, 25:P, 26:Q, 27:R, 28:S, 29:T, 30:U, 31:V, 32:W, 33:X, 34:Y, 35:Z

numeralSystemBase - Numeral system base, between 1 and 36

Returns:

Decimal number after conversion. If conversion was not possible the Double.NaN is returned.