Folium de Descartes
極大値
( 3√2a,3√4a ),( 3√2a,-3√4±√63√22a )
極小値 (0,0)
A( 32a,32a ),( 32a,-3±3√54a)
x3 + y3±axy = 0
極大値 (±3√23a,±3√43a),( ±3√23a,±-3√4±√63√26a)
極小値 (0,0)
A(±12a,±12a ),(±12a,±-1±√54a)
T.theodor 2022.5.3