nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/api/complex/BaseComplexNDArray.java
@Override
    public double squaredDistance(INDArray other) {
        double sd = 0.0;
        if (other instanceof IComplexNDArray) {
            IComplexNDArray n = (IComplexNDArray) other;
            IComplexNDArray nLinear = n.linearView();

            for (int i = 0; i < length(); i++) {
                IComplexNumber diff = linearView().getComplex(i).sub(nLinear.getComplex(i));
                double d = diff.absoluteValue().doubleValue();
                sd += d * d;
            }
            return sd;
        }
        for (int i = 0; i < length(); i++) {
            INDArray linear = other.linearView();
            IComplexNumber diff = linearView().getComplex(i).sub(linear.getDouble(i));
            double d = diff.absoluteValue().doubleValue();
            sd += d * d;
        }

        return sd;
    }
@Override
    public double squaredDistance(INDArray other) {
        double sd = 0.0;
        if (other instanceof IComplexNDArray) {
            IComplexNDArray n = (IComplexNDArray) other;
            IComplexNDArray nLinear = n.linearView();

            for (int i = 0; i < length(); i++) {
                IComplexNumber diff = linearView().getComplex(i).sub(nLinear.getComplex(i));
                double d = diff.absoluteValue().doubleValue();
                sd += d * d;
            }
            return sd;
        }
        for (int i = 0; i < length(); i++) {
            INDArray linear = other.linearView();
            IComplexNumber diff = linearView().getComplex(i).sub(linear.getDouble(i));
            double d = diff.absoluteValue().doubleValue();
            sd += d * d;
        }

        return sd;
    }
Returns the squared (Euclidean) distance.