ArithExpress

package lessons;

public class ArithExpressions
{

	public static void main(String[] args)
	{
		int a = 1, b = 3, i = 4, j = 9, k = 6, x = 2, y = 3, r = 2, n = 7, m = -12, rad = 10;
		double res, area, areaRound;

		res = (x+y)/2;
		System.out.println("(x+y)/2= "+res);

		res = Math.pow((1+r)/100.0, n);
		//this takes two arguments the base then the exponent,
		//the base is first input then exp is second

		System.out.println("(1+r)/100^7)=" + res);

		res = Math.sqrt(a*a+b*b);
		System.out.println("math.sqrt(a*a+b*b)="+res);

		area = Math.pow(rad,2)*Math.PI;
				System.out.println("Math.pow(rad,2)*Math.PI"+area);


		areaRound = Math.round(area);
				System.out.println(area);

		area = Math.ceil(area);
		// ceil rounds up

		area = Math.floor(area);
		// floor rounds down

		System.out.println(Math.abs(-12));
		//abs finds absolute value, turns all num to pos
	}

}