FastLog (glimpse-full-assembly 4.0.0 API)

java.lang.Object
- com.metsci.glimpse.util.math.fast.FastFunc
- - com.metsci.glimpse.util.math.fast.FastLog

```
public class FastLog
extends FastFunc
```
Provides about 12 digits of accuracy at a fraction of the cost of Math.log().

Author:

ellis

Field Summary

Fields
Modifier and Type Field Description

static double LN_2

static double LN_2_INV

static double LOG10_2

Constructor Summary

Constructors
Constructor Description

FastLog(int samples)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`evaluate(double x)`
`static FastLog`	`getInstance()`
`double`	`log10(double x)`
`double`	`log2(double x)`

Methods inherited from class com.metsci.glimpse.util.math.fast.FastFunc
lookup, lookup

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

Field Detail

LN_2
```
public static final double LN_2
```

LN_2_INV
```
public static final double LN_2_INV
```

LOG10_2
```
public static final double LOG10_2
```

Constructor Detail
- FastLog
```
public FastLog(int samples)
```

Method Detail

getInstance
```
public static FastLog getInstance()
```

log2
```
public double log2(double x)
```

evaluate
```
public double evaluate(double x)
```
Overrides:

evaluate in class FastFunc

log10
```
public double log10(double x)
```