Ismene's philosophy has a great impact on Calculus

She proposes that each person can't accomplish thing- exceed their ability. This concept seem to apply well to Calculus. Suppose a function going beyond their horizontal asymptotes, therefore this is not a function any more. For a rational function, the denominator can not be zero , and so as a mathematician , this person must not pick zero. Many mathematicians have attempted to define imaginary number, i. As a result , none of them success .