math « performance « Java Testing Q&A

1. Java: Performance SQRT Calculations    stackoverflow.com

I have this code:

package math;

import java.io.IOException;
import java.util.Scanner;

public class Main
{
    public static void main(String[] args) throws IOException
    {
        System.out.println("Hi, ...

2. int vs float arithmetic efficiency in Java    stackoverflow.com

I'm writing an application that uses Dijkstra algorithm to find minimal paths in the graph. The weights of the nodes and edges in the graph are float numbers, so the algorithm ...

3. Java Math.tanh() performance    stackoverflow.com

I have a Java program that does many calls to the Math.tanh() function. Out of curiosity I wanted to do a comparison with C++. Therefore I wrote two small programs, one ...

4. Faster math ops    stackoverflow.com

Possible Duplicate:
Fast algorithm for polar -> cartesian conversion

5. Is performance of "Math.abs()" better than expression with "if"?    stackoverflow.com

I have expression:

Double getAbs(Double value){
return value> 0 ? value: value== 0 ? null : -value;
}

 Double getAbs(Double value){
return Math.abs(value);
}