👉 The term "modificand" is a mathematical concept in calculus, specifically used for functions of two variables. It refers to the function that represents changes or modifications made on one variable by another. In simple terms, the modificand represents the change or modification applied to one variable. The formula for this change is: f(x) = f(x1) + f'(x1)(y - y1) Where: - f(x) is the original function - f'(x) is
