| 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. | next, define the constant elements hij of the n×n hessian matrix h.
其次，定义nn海赛矩阵H的常数元数为hij。 |
| 3. | 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。 |
| 4. | The algebra of quaternions, the first noncommutative algebra was thus suddenly born .
四元数的代数，第一非交换的代数，就这样突然诞生了。 |
| 5. | Spectral analysis of the matrices over quaternionic sfield
四元数矩阵的谱分析 |
| 6. | Calculates the exponential of the specified quaternion
计算指定四元数的幂。 |
| 7. | Quaternion diffusion for color image filtering
颜色图像滤波的四元数扩散方法 |
| 8. | Returns the square of the length of a quaternion
返回四元数的长度的平方。 |
| 9. | Returns the negation of the specified quaternion
返回指定四元数的取非值。 |
| 10. | Computes the axis and angle of rotation for a quaternion
计算四元数的轴和旋转角度。 |
