MathFunctions (Pen Profile API Reference)

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com.livescribe.util
Class MathFunctions

java.lang.Object
  com.livescribe.util.MathFunctions

public final class MathFunctions
extends Object
extends Object

MathFunctions provide rounding and scientific methods

Method Summary
`static double`	`acos(double cosValue)` Returns the arc cosine of an angle
`static double`	`asin(double sinValue)` Returns the arc sine of an angle
`static double`	`atan(double tanValue)` Returns the arc tangent of an angle
`static float`	`exp(float value)` Returns Euler's number, e, raised to the specified value.
`static double`	`ln(double lnValue)` Returns the natural logarithm (base e) of a double value.
`static double`	`log(double logValue)` Returns the base 10 logarithm of a double value.
`static double`	`pow(double base, double power)` Returns the value of the first argument raised to the power of the second argument
`static float`	`powf(float base, float power)` Returns the value of the first argument raised to the power of the second argument
`static String`	`powString(float base, float power)` Returns the value of the first argument raised to the power of the second argument as a String
`static double`	`round(double value)` Rounds the specified value.
`static String`	`roundDisplay(double value)` Returns the value of a decimal value with rounding
`static float`	`roundf(float value)` Rounds the specified value.

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

Method Detail

ln

public static double ln(double lnValue)

Returns the natural logarithm (base e) of a double value. Note that the name of this method differs from Java's standard Math.log().

Parameters:: lnValue - a value
Returns:: the value ln lnValue, the natural logarithm of lnValue.

log

public static double log(double logValue)

Returns the base 10 logarithm of a double value. Note that the name of this method differs from Java's standard Math.log10().

Parameters:: logValue - a value
Returns:: the base 10 logarithm of logValue

pow

public static double pow(double base,
                         double power)

Returns the value of the first argument raised to the power of the second argument

Parameters:: base - the base; power - the exponent
Returns:: the result of raising the base to the exponent

powString

public static String powString(float base,
                               float power)

Returns the value of the first argument raised to the power of the second argument as a String

Parameters:: base - the base; power - the exponent
Returns:: the result of raising the base to the exponent as a String value

roundDisplay

public static String roundDisplay(double value)

Returns the value of a decimal value with rounding

Parameters:: value - The value that needs to be rounded. It should be in format [number.decimal] If the decimal value is greater then 10 digits then the decimal value is rounded to the 10th decimal place
Returns:: the result rounded to the 10th decimal place

powf

public static float powf(float base,
                         float power)

Returns the value of the first argument raised to the power of the second argument

Parameters:: base - the base; power - the exponent
Returns:: the result of raising the base to the exponent

exp

public static float exp(float value)

Returns Euler's number, e, raised to the specified value.

Parameters:: value - the exponent
Returns:: the value after raising e, where e is the base of the natural logarithm

round

public static double round(double value)

Rounds the specified value.

Parameters:: value - round this value
Returns:: the rounded value.

roundf

public static float roundf(float value)