Package cc.redberry.core.tensor.iterator

Examples of cc.redberry.core.tensor.iterator.TreeIterator.result()

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        Tensor c;
        while ((c = iterator.next()) != null)
            if (c instanceof Sum)
                iterator.set(factorOut(c));

        iterator = new FromParentToChildIterator(iterator.result());
        while ((c = iterator.next()) != null) {
            if (!(c instanceof Sum))
                continue;
            if (needTogether(c)) {
                c = TogetherTransformation.together(c, true);
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                    iterator.set(pb == null ? c : pb.build());
                } else iterator.set(c);
            } else
                iterator.set(JasFactor.factor(c));
        }
        return iterator.result();
    }

    private static boolean needTogether(Tensor t) {
        if (t instanceof Power) {
            if (needTogether(t.get(0)))
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        Tensor c;
        while ((c = iterator.next()) != null)
            if (c instanceof Sum)
                iterator.set(factorOut(c));

        iterator = new FromParentToChildIterator(iterator.result());
        while ((c = iterator.next()) != null) {
            if (!(c instanceof Sum))
                continue;
            if (needTogether(c)) {
                c = TogetherTransformation.together(c, true);
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                    iterator.set(pb == null ? c : pb.build());
                }
            } else
                iterator.set(JasFactor.factor(c));
        }
        return iterator.result();
    }

    private static boolean needTogether(Tensor t) {
        if (t instanceof Power) {
            if (needTogether(t.get(0)))
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        Tensor c;
        while ((c = iterator.next()) != null)
            if (c instanceof Sum)
                iterator.set(factorOut(c, factorizationEngine));

        iterator = new FromParentToChildIterator(iterator.result());
        while ((c = iterator.next()) != null) {
            if (!(c instanceof Sum))
                continue;
            if (needTogether(c)) {
                c = TogetherTransformation.together(c, true);
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                    iterator.set(pb == null ? c : pb.build());
                } else iterator.set(c);
            } else
                iterator.set(factorSum1(c, factorizationEngine));
        }
        return iterator.result();
    }

    private static Tensor factorSum1(Tensor sum, FactorizationEngine engine) {
        Tensor[] parts = reIm(sum);
        if (!TensorUtils.isZero(parts[0])) {
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