Method add

src/main/java/freemarker/core/ArithmeticEngine.java:83–83

(Number first, Number second)

    public abstract int compareNumbers(Number first, Number second) throws TemplateException;
    public abstract Number add(Number first, Number second) throws TemplateException;
    public abstract Number subtract(Number first, Number second) throws TemplateException;
    public abstract Number multiply(Number first, Number second) throws TemplateException;
    public abstract Number divide(Number first, Number second) throws TemplateException;