import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.DecimalFormat;

/**
 *
 * @author Kayton
 */
public class SimplePhysCalc {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        // TODO code application logic here
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        double[] mag = new double[4];
        double[] angle = new double[4];
        double[] cos = new double[4];
        double[] sin = new double[4];
        double[] cos1 = new double[4];
        double[] sin1 = new double[4];
        DecimalFormat df = new DecimalFormat("0.000");
        System.out.println("Please enter vector magnitude 0: ");
        mag[0] = Double.parseDouble(br.readLine());
        System.out.println("Please enter angle 0: ");
        angle[0] = Double.parseDouble(br.readLine());
        System.out.println("");
        cos[0] = Math.cos(Math.toRadians(angle[0]));
        sin[0] = Math.sin(Math.toRadians(angle[0]));
        System.out.println("Please enter vector magnitude 1: ");
        mag[1] = Double.parseDouble(br.readLine());
        System.out.println("Please enter angle 1: ");
        angle[1] = Double.parseDouble(br.readLine());
        System.out.println("");
        cos[1] = Math.cos(Math.toRadians(angle[1]));
        sin[1] = Math.sin(Math.toRadians(angle[1]));
        System.out.println("Please enter vector magnitude 2: ");
        mag[2] = Double.parseDouble(br.readLine());
        System.out.println("Please enter angle 2: ");
        angle[2] = Double.parseDouble(br.readLine());
        System.out.println("");
        cos[2] = Math.cos(Math.toRadians(angle[2]));
        sin[2] = Math.sin(Math.toRadians(angle[2]));
        System.out.println("Please enter vector magnitude 3: ");
        mag[3] = Double.parseDouble(br.readLine());
        System.out.println("Please enter angle 3: ");
        angle[3] = Double.parseDouble(br.readLine());
        System.out.println("");
        cos[3] = Math.cos(Math.toRadians(angle[3]));
        sin[3] = Math.sin(Math.toRadians(angle[3]));
        System.out.println(mag[0] + "*cos(" + angle[0] + ") = " + mag[0] + "*(" + df.format(cos[0]) + ") = " + df.format(mag[0] * cos[0]));
        System.out.println(mag[0] + "*sin(" + angle[0] + ") = " + mag[0] + "*(" + df.format(sin[0]) + ") = " + df.format(mag[0] * sin[0]));
        System.out.println(mag[1] + "*cos(" + angle[1] + ") = " + mag[1] + "*(" + df.format(cos[1]) + ") = " + df.format(mag[1] * cos[1]));
        System.out.println(mag[1] + "*sin(" + angle[1] + ") = " + mag[1] + "*(" + df.format(sin[1]) + ") = " + df.format(mag[1] * sin[1]));
        System.out.println(mag[2] + "*cos(" + angle[2] + ") = " + mag[2] + "*(" + df.format(cos[2]) + ") = " + df.format(mag[2] * cos[2]));
        System.out.println(mag[2] + "*sin(" + angle[2] + ") = " + mag[2] + "*(" + df.format(sin[2]) + ") = " + df.format(mag[2] * sin[2]));
        System.out.println(mag[3] + "*cos(" + angle[3] + ") = " + mag[3] + "*(" + df.format(cos[3]) + ") = " + df.format(mag[3] * cos[3]));
        System.out.println(mag[3] + "*sin(" + angle[3] + ") = " + mag[3] + "*(" + df.format(sin[3]) + ") = " + df.format(mag[3] * sin[3]));
        System.out.println("");
        System.out.println("Because I don't have the graph, the signs may not be \n"
                + "correct on the calculations above. If you wish to invert\n"
                + "the sign of any of the numbers, do it manually in the next\n"
                + "set of calculations");
        System.out.println("");
        System.out.println("I will now combine all of the cosine values. I can \n"
                + "take in a maximum of 4 values. Please enter the desired values\n"
                + "above with their proper signs: (separate with enter, use 0's\n"
                + "if no value is desired)");
        cos1[0] = Double.parseDouble(br.readLine());
        cos1[1] = Double.parseDouble(br.readLine());
        cos1[2] = Double.parseDouble(br.readLine());
        cos1[3] = Double.parseDouble(br.readLine());
        double totCos = 0;
        for (double i : cos1) {
            totCos += i;
        }
        System.out.println("The total cosine value is " + df.format(totCos));
        System.out.println("");
        System.out.println("I will now combine all of the sine values. I can \n"
                + "take in a maximum of 4 values. Please enter the desired values\n"
                + "above with their proper signs: (separate with enter, use 0's\n"
                + "if no value is desired)");
        sin1[0] = Double.parseDouble(br.readLine());
        sin1[1] = Double.parseDouble(br.readLine());
        sin1[2] = Double.parseDouble(br.readLine());
        sin1[3] = Double.parseDouble(br.readLine());
        double totSin = 0;
        for (double i : sin1) {
            totSin += i;
        }
        System.out.println("The total sine value is " + df.format(totSin));
        System.out.println("");
        System.out.println("The total magnitude of the resultant vector is " + df.format(Math.sqrt((totSin*totSin) + (totCos*totCos))));
        double totTan = totSin/totCos;
        System.out.println("Tangent = Sine/cosine = (" + df.format(totSin) + ")/(" + df.format(totCos) + ") = " + df.format(totSin/totCos));
        System.out.println("The angle of the resultant vector is " + df.format(Math.toDegrees(Math.atan(totTan))) + " degrees.");

    }
}