quartic equation [数] 四次方程 ; 四次方程式
quartic surface [数] 四次曲面
quartic symmetry 四次对称
Quartic polynomial 四次多项式
quartic surd 四次不尽根
ternary quartic form [数] 三元四次型 ; 三元四次式
unicursal quartic 有理四次曲线 ; 单行四次曲线
trinodal quartic [数] 三结点四次线
bicircular quartic [数] 重圆点四次线
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ADJ/N → same as biquadratic
The solar equation table of the Dayan Calendar is a mathematical table of equally quartic difference, and it reflects Yi Xing's profound understanding about the solar motion.
《大衍历》日躔表是一份四次差分相等的数表，反映一行对太阳运动复杂性的深刻认识。
The intersection of two right circular cylinders is usually quartic curve.
正交两圆柱的相贯线，一般是四次曲线。
This paper proposes a piecewise geometric approach to parametrize a kind of quartic implicit algebraic surface.
针对一类四次隐式代数曲面，提出一种基于分片的几何参数化方法。
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