class VariableValues {

    public static Map<VariableReference, DoubleTensor> pow(Map<VariableReference, DoubleTensor> values, double exponent) {
        Map<VariableReference, DoubleTensor> result = new HashMap<>();
        for (VariableReference v : values.keySet()) {
            result.put(v, values.get(v).pow(exponent));
        }
        return result;
    }

    private  VariableValues();

}