$\displaystyle\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$ 쌍곡선 그리기(Draw hyperbola $\displaystyle\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$ ($a>0$, $b>0$)) https://min7014.github.io/math20220704001.html