129 lines
3.4 KiB
Java
129 lines
3.4 KiB
Java
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import algebra.*;
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public class TestAlgebra {
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public static void test() throws Exception {
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System.out.println("Algebra\n# Test Start");
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Vector v = new Vector(3);
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Vector v1 = new Vector(1);
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v1.setName("up");
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try {
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new Vector(0);
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} catch (Exception e) {
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System.out.println("Wrong size exception caught OK");
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}
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try {
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new Vector("named", 0);
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} catch (Exception e) {
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System.out.println("Wrong size exception caught OK");
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}
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System.out.println(v);
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System.out.println(v1);
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Vector u1 = new Vector("u1", 3);
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u1.set(0, 1.0);
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u1.set(1, 2.0);
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u1.set(2, 3.0);
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Vector u2 = new Vector(3);
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u2.set(new double[3]);
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u2.set(1, 2.0);
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System.out.println(u1);
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System.out.println("norm(u1) = " + u1.norm());
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System.out.println(u2);
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System.out.println("u1.u2 = " + u1.dot(u2));
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try {
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u1 = new Vector("u1", 3);
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u2 = new Vector("u2", 4);
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u1.dot(u2);
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} catch (SizeMismatchException e) {
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System.out.println("Caught exception: " + e);
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}
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Vector3 r1 = new Vector3("u1", 1.0, 2.0, 3.0);
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Vector3 r2 = new Vector3("u2", 1.0, 3.0, 0.0);
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Vector3 r = r1.cross(r2);
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System.out.println(r1);
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System.out.println(r2);
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System.out.println("r1.r2 = " + r1.dot(r2));
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System.out.println("r1.r2 = " + r1.dot((Vector) r2) + " (as Vector)");
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System.out.println("r1 x r2 = " + r);
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System.out.println("norm(" + r.getName() + ") = " + r.norm());
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r.normalize();
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System.out.println("norm(" + r.getName() + ") (after ::normalize()) = " + r.norm());
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// -------------------------------------
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System.out.println("--\n-- Matrix tests\n--");
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Matrix M = new Matrix(3, 5);
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System.out.println(M);
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Matrix M1 = new Matrix("M1", 2, 5);
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M1.set(0, 0, 2.0);
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M1.set(1, 4, -8.0);
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M1.set(1, 2, 5.0);
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try {
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new Matrix("M2", 0, 2);
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} catch (Exception e) {
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System.out.println("Wrong size exception caught OK");
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}
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try {
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M.multiply(M1);
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} catch (SizeMismatchException e) {
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System.out.println("Caught exception: " + e);
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}
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Matrix M2 = Matrix.createIdentity(5);
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System.out.println(M2);
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M = M1.multiply(M2);
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System.out.println(M1);
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System.out.println(M2);
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System.out.println(M);
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M1 = M1.transpose();
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M1.name = "M1'";
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System.out.println(M1);
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Vector u = new Vector("u", 5);
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u.ones();
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v = M.multiply(u);
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System.out.println(M);
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System.out.println(u);
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System.out.println("M.u = " + v);
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try {
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u = new Vector("u", 3);
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v = M.multiply(u);
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} catch (SizeMismatchException e) {
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System.out.println("Caught exception: " + e);
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}
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Matrix I = Matrix.createIdentity(5);
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Matrix S = I.getSubMatrix(0, 2, 3, 3);
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System.out.println(I);
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System.out.println("submatrix:\n" + S);
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}
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public static void main(String[] args) {
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try {
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test();
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System.out.println("SUCCESS.");
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} catch (Exception e) {
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System.out.println("FAIL: " + e);
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e.printStackTrace();
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}
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}
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}
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