Package org.geotools.referencing.operation.matrix

Examples of org.geotools.referencing.operation.matrix.GeneralMatrix.invert()

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            m.setElement(1,0, 100*random.nextDouble());
            m.setElement(1,1, 100*random.nextDouble());
            final Matrix2 original = m.clone();
            final GeneralMatrix check = new GeneralMatrix(m);
            m.invert();
            check.invert();
            assertTrue(check.equals(m, 1E-9));
            m.multiply(original);
            assertTrue(identity.equals(m, 1E-9));
        }
    }
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            ATl.mul(AT, l);

            /**constrains**/
            GeneralMatrix AB = createAB(ATA, getB());

            AB.invert();
            AB.negate();

            GeneralMatrix AU = createAU(ATl, getU());
            xk.mul(AB, AU);

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            ATl.mul(AT, l);

            /**constrains**/
            GeneralMatrix AB = createAB(ATA, getB());

            AB.invert();
            AB.negate();

            GeneralMatrix AU = createAU(ATl, getU());
            xk.mul(AB, AU);

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            ATP .mul(AT,  P); // ATP
            ATPA.mul(ATP, A); // ATPA
            ATPX.mul(ATP, X); // ATPX

            GeneralMatrix ATPAI = ATPA.clone();
            ATPAI.invert();

            x.mul(ATPAI, ATPX);

            // assert the ATPAx + ATPX should be 0;.
            x.mul(ATPA, x);
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