Package cc.redberry.core.tensor.iterator

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

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            if (c instanceof Sum)
                iterator.set(togetherSum(c, doFactor));
            if (c instanceof Product)
                iterator.set(collectScalarFactorsInProduct((Product) c));
        }
        return iterator.result();
    }

    private static Tensor togetherSum(Tensor t, boolean doFactor) {
        boolean performTogether = false;
        for (Tensor s : t)
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        Tensor c;
        while ((c = iterator.next()) != null)
            if (c instanceof Complex)
                iterator.set(((Complex) c).getNumericValue());

        return iterator.result();
    }
}
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                SumBuilderSplitingScalars sbss = new SumBuilderSplitingScalars(c.size());
                for (Tensor tt : c)
                    sbss.put(tt);
                iterator.set(sbss.build());
            }
        return iterator.result();
    }
}
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        Tensor current;
        while ((current = iterator.next()) != null) {
            if (current instanceof Product)
                iterator.set(collectScalarFactorsInProduct((Product) current));
        }
        return iterator.result();
    }

    /**
     * Puts together similar scalar subproducts in a given product. For example, tensor A_m*A^m*A_n*A^n
     * will be transformed to tensor (A_m*A^m)**2.
 
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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(factorizationEngine.factor(c));
        }
        return iterator.result();
    }

    private static boolean needTogether(Tensor t) {
        if (t instanceof Power) {
            if (needTogether(t.get(0)))
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        FromChildToParentIterator iterator = new FromChildToParentIterator(tensor);
        Tensor c;
        while ((c = iterator.next()) != null)
            if (c instanceof Sum)
                iterator.set(factorOut1(c, factorizationEngine));
        return iterator.result();
    }

    private static boolean isProductOfSums(Tensor tensor) {
        if (tensor instanceof Sum)
            return false;
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        while ((c = iterator.next()) != null)
            if (powerExpandApplicable(c, toExpandIndicator))
                iterator.set(Tensors.multiply(powerExpandToArray1(c, toExpandIndicator)));

        return iterator.result();
    }
}
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        FromChildToParentIterator iterator = new FromChildToParentIterator(t);
        Tensor c;
        while ((c = iterator.next()) != null)
            if (c instanceof Complex)
                iterator.set(((Complex) c).conjugate());
        return iterator.result();
    }
}
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                }
                //todo d_i^i = 4
                iterator.set(current);
            }
        }
        return iterator.result();
    }

    //first is gamma, second is gamma5
    int[] calculateGammasInProduct(Tensor product) {
        int[] r = new int[2];
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