👉 The term "ensheathed" in the context of mathematics refers to a condition where the result or solution is obtained by applying a function that has been applied multiple times, but without any further application. This technique is often used in calculus and mathematical analysis. For example, consider the function f(x) = x^2 - 3x + 1. If we apply this function three times to the input of x, say y, then: f(y) = (y)^2 -