The Joy of Mathematics

Title: Six Leaf Clover
Description: r² = cos²(3q)
Equation: z = 16x⁶/r⁶ - 24x⁴/r⁴ + 9x²/r² - r²
Drawing Limits: (-2, -2) - (2, 2)
Min z: -6.1261, Max z: 0.993755