數學曲線(一)
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| Astroid | Bicorn |
| 方程：x2/3 + y2/3 = a2/3 | 方程：y2(a2 - x2) = (x2 + 2ay - a)2 |
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| Cardioid | Cartesian Oval |
| 方程：(x2 + y2 - 2ax)2 = 4a2(x2 + y2) | 方程：((1 - m2)(x2 + y2) + 2m2cx + a2 - m2c2)2 = 4a2(x2 + y2) |
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| Cassinian Ovals | Catenary |
| 方程：(x2 + y2)2 - 2a2(x2 - y2) - a4 + c4 = 0 | 方程：y = a cosh(x/a) |
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| Cayley's Sextic | Circle |
| 方程：4(x2 + y2 - ax)3 = 27a2(x2 + y2)2 | 方程：x2 + y2 = a2 |
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| Cissoid of Diocles | Cochleoid |
| 方程： y2 = x3/(2a - x) | 方程：r = a sin(θ)/θ |
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| Conchoid | Conchoid of de Sluze |
| 方程：(x - b)2(x2 + y2) - a2x2 = 0 | 方程：a(x - a)(x2 + y2) = k2x2 |