com.structed.utils

Class MathHelpers

java.lang.Object

com.structed.utils.MathHelpers

public class MathHelpers
extends java.lang.Object

Helper class for all the math operations

Constructor Summary

Constructors

Constructor and Description
MathHelpers()

Method Summary

Methods

Modifier and Type	Method and Description
static Vector	add2Vectors(Vector v1, Vector v2) add scalar to a double vector
static Vector	addScalar2Vectors(Vector v1, double scalar) add scalar to a double vector
static Vector	mulScalarWithVectors(Vector v1, double scalar) add scalar to a double vector
static double	multipleVectors(Vector v1, Vector v2) multiple two double vectors
static double	sigmoid(double x) Preform sigmoid functions
static Vector	subtract2Vectors(Vector v1, Vector v2) add scalar to a double vector

Methods inherited from class java.lang.Object

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

Constructor Detail

MathHelpers

public MathHelpers()

Method Detail

multipleVectors

public static double multipleVectors(Vector v1,
                     Vector v2)

multiple two double vectors

Parameters:

v1 - first vector

v2 - second vector

Returns:

the result

addScalar2Vectors

public static Vector addScalar2Vectors(Vector v1,
                       double scalar)

add scalar to a double vector

Parameters:

v1 - vector

scalar - scalar

Returns:

the result

mulScalarWithVectors

public static Vector mulScalarWithVectors(Vector v1,
                          double scalar)

add scalar to a double vector

Parameters:

v1 - vector

scalar - scalar

Returns:

the result

subtract2Vectors

public static Vector subtract2Vectors(Vector v1,
                      Vector v2)

add scalar to a double vector

Parameters:

v1 - first vector

v2 - second vector

Returns:

the result

add2Vectors

public static Vector add2Vectors(Vector v1,
                 Vector v2)

add scalar to a double vector

Parameters:

v1 - first vector

v2 - second vector

Returns:

the result

sigmoid

public static double sigmoid(double x)

Preform sigmoid functions

Parameters:

x - value

Returns:

the sigmoid result