Bugzilla – Full Text Bug Listing

This bugzilla service is closed. All entries have been migrated to https://gitlab.com/libeigen/eigen

Summary: | add skew symmetric matrix adapter | ||
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Product: | Eigen | Reporter: | Michael Norel <minorlogic> |

Component: | Geometry | Assignee: | Nobody <eigen.nobody> |

Status: | DECISIONNEEDED --- | ||

Severity: | Feature Request | CC: | chtz, gael.guennebaud, hauke.heibel, jacob.benoit.1 |

Priority: | Normal | Keywords: | JuniorJob |

Version: | 3.4 (development) | ||

Hardware: | All | ||

OS: | All | ||

Whiteboard: | |||

Bug Depends on: | |||

Bug Blocks: | 1608 |

Description
Michael Norel
2017-10-05 16:36:37 UTC
Interesting feature. This would also simplify/optimize writing things like for(int i=0; i<n; ++i) res.col(i) = a.cross(b.col(i)); For two vectors a.cross(b) should generate the same code as a.skew()*b; And it might be worth considering to implement a.skew().exp() (i.e., calculating the matrix exponential of a skew-symmetric matrix -- which is much easier than the general case) Not sure about the name. Maybe .asSkew() or .asSkewSymmetric()? And do we want the inverse as well? (Getting a 3x1 vector from a 3x3 matrix) -- GitLab Migration Automatic Message -- This bug has been migrated to gitlab.com's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.com/libeigen/eigen/issues/1474. |