MathTimings.md

For Loop Sum Counter

public void sumCheck1(int a){
  if (a > 0){
    int b = 0;
    for (int i = 0; i <= a; i++){
      b = b + i;
    }
    print(b);
  }else if (a < 0){
    int b = 0;
    for (int i = 0; i >= a; i--){
      b = b + i;
    }
    print(b);
  }else{
    print(0);
  }
}

Equation Sum Counter

public void sumCheck2(int a){
  if (a > 0){
    int b = (((a/2) * (a-1)) + a);
    print(b);
  }else if (a < 0){
    int b = (((a/(0-2)) * (a+1)) + a);
    print(b);
  }else{
    print(0);
  }
}

Full Code

import java.util.*;
import java.lang.*;
import java.io.*;

class MathTimings
{
	public static void main (String[] args){
		sumCheck1(1);
		sumCheck1(100);
		sumCheck1(-1);
		sumCheck1(-100);
		sumCheck1(0);
		
		sumCheck2(1);
		sumCheck2(100);
		sumCheck2(-1);
		sumCheck2(-100);
		sumCheck2(0);
	}
	
	public static void sumCheck1(int a){
		long start = System.nanoTime();
		
		if (a > 0){
			int b = 0;
			for (int i = 0; i <= a; i++){
		  	b = b + i;
			}
			
			long stop = System.nanoTime() - start;
			System.out.println(b + " | " + stop);
		}else if (a < 0){
			int b = 0;
			for (int i = 0; i >= a; i--){
		  		b = b + i;
			}
			
			long stop = System.nanoTime() - start;
			System.out.println(b + " | " + stop);
		}else{
			long stop = System.nanoTime() - start;
			System.out.println(0 + " | " + stop);
		}
	}
	
	public static void sumCheck2(int a){
		long start = System.nanoTime();
		if (a > 0){
			int b = (((a/2) * (a-1)) + a);
			long stop = System.nanoTime() - start;
			System.out.println(b + " | " + stop);
		}else if (a < 0){
			int b = (((a/(0-2)) * (a+1)) + a);
			long stop = System.nanoTime() - start;
			System.out.println(b + " | " + stop);
		}else{
			long stop = System.nanoTime() - start;
			System.out.println(0 + " | " + stop);
		}
	}
}

Timings:

Type	Number	Sum	Time
For-Loop	1	1	813 nanoseconds
For-Loop	100	5050	2829 nanoseconds
For-Loop	-1	-1	677 nanoseconds
For-Loop	-100	-5050	2765 nanoseconds
For-Loop	0	0	410 nanoseconds
Equation	1	1	597 nanoseconds
Equation	100	5050	495 nanoseconds
Equation	-1	-1	514 nanoseconds
Equation	-100	-5050	488 nanoseconds
Equation	0	0	425 nanoseconds