中文翻译与英英解释 | n.
1.四，四个一组；四组物；四人一组。
2.四张对折的一沓纸；对折两次的一张纸。
3.【数学】四元数；〔pl.〕四元法。
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| the cardinal number that is the sum of three and one
同义词：four, 4, IV, tetrad, quatern, quaternary, quaternity, quartet, quadruplet, foursome, Little Joe,
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| In mathematics, the quaternions are a number system that extends the complex numbers. They were first described by Irish mathematician William Rowan Hamilton in 1843 and applied to mechanics in three-dimensional space. |
例句与用法 | 1. | Vector is a useless survival, or offshoot from quaternions .
向量是无用的幸存物或四元数的无价值的支流。
| | 2. | The criterion of equality of two quaternions is that their scalar parts shall be equal .
两个四元数相等的准则是，它们的数量部分相等。
| | 3. | Calculates the exponential of the specified quaternion
计算指定四元数的幂。
| | 4. | Quaternion diffusion for color image filtering
颜色图像滤波的四元数扩散方法
| | 5. | Returns the square of the length of a quaternion
返回四元数的长度的平方。
| | 6. | Returns the negation of the specified quaternion
返回指定四元数的取非值。
| | 7. | Computes the axis and angle of rotation for a quaternion
计算四元数的轴和旋转角度。
| | 8. | Replaces the current quaternion with its exponential
用当前四元数的幂替换此四元数。
| | 9. | Returns the normalized form of the specified quaternion
返回指定四元数的正规化形式。
| | 10. | The wavelet transform of quaternion value function
四元数值函数的小波变换
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