The Joy of Mathematics

Title: Circus Tent
Description: a pair of polynomials with 5 roots each
Equation: z = x⁵ - 5x³ + 4x - y⁵ + 5y³ - 4y
Drawing Limits: (-2, -2) - (2, 2)
Min z: -6.91267, Max z: 6.88453