Package net.fec.openrq.util.linearalgebra.matrix

Examples of net.fec.openrq.util.linearalgebra.matrix.ByteMatrix.columns()

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        }

        ByteMatrix result = factory.createMatrix(rows(), matrix.columns());

        for (int i = 0; i < rows(); i++) {
            for (int j = 0; j < result.columns(); j++) {
                byte acc = 0;
                ByteVectorIterator it = nonZeroRowIterator(i);
                while (it.hasNext()) {
                    it.next();
                    final byte prod = aTimesB(it.get(), matrix.get(it.index(), j));
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    public void testCreateIdentityMatrix() {

        ByteMatrix a = factory().createIdentityMatrix(3);

        assertEquals(3, a.rows());
        assertEquals(3, a.columns());

        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                if (i == j) {
                    assertEquals(1, a.get(i, j));
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        byte diagonal[] = new byte[] {1, 2, 3};
        ByteMatrix a = factory().createDiagonalMatrix(diagonal);

        assertEquals(3, a.rows());
        assertEquals(3, a.columns());

        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                if (i == j) {
                    assertEquals(diagonal[i], a.get(i, j));
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        int j = 2000000;

        ByteMatrix a = factory().createMatrix(i, j);

        assertEquals(i, a.rows());
        assertEquals(j, a.columns());

        for (int x = 0; x < i; x += 100000) {
            for (int y = 0; y < j; y += 500000) {
                a.set(x, y, aTimesB((byte)x, (byte)y));
            }
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        assertEquals(0, i * j);

        ByteMatrix a = factory().createMatrix(i, j);

        assertEquals(i, a.rows());
        assertEquals(j, a.columns());

        a.set(0, 0, (byte)42);
        assertEquals(a.get(0, 0), 42);

        a.set(i - 1, j - 1, (byte)7);
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        assertTrue(i * j < 0);

        ByteMatrix a = factory().createMatrix(i, j);

        assertEquals(i, a.rows());
        assertEquals(j, a.columns());

        for (int row = 0; row < 32; row++) {
            a.set(row, 1, (byte)3);
        }
    }
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        for (Factory factory : FACTORIES) {
            ByteMatrix a = factory.createMatrix(new IdentityMatrixSource(5));

            assertEquals(5, a.rows());
            assertEquals(5, a.columns());

            for (int i = 0; i < a.rows(); i++) {
                for (int j = 0; j < a.columns(); j++) {
                    if (i == j) {
                        assertEquals(a.get(i, j), 1);
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            assertEquals(5, a.rows());
            assertEquals(5, a.columns());

            for (int i = 0; i < a.rows(); i++) {
                for (int j = 0; j < a.columns(); j++) {
                    if (i == j) {
                        assertEquals(a.get(i, j), 1);
                    }
                    else {
                        assertEquals(a.get(i, j), 0);
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        assertEquals(5, b.columns());
        assertEquals(5, b.rows());
        assertEquals(5, c.rows());
        assertEquals(5, c.columns());
        assertEquals(5, d.rows());
        assertEquals(5, d.columns());

        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 5; j++)
            {
                assertEquals(0, b.get(i, j));
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        };

        ByteMatrix a = factory().createMatrix(array);

        assertEquals(3, a.rows());
        assertEquals(3, a.columns());

        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                assertEquals(array[i][j], a.get(i, j));
            }
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