团长CXYsama

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I have download velocity,and it work fine on my computer ,but when I use this vscode-dash,it show that can not find program

Thanks for your execlent work...Im not a math student and I get some confusion about derivation in Appendix A. 1. why ![$Q^n=(J^n)^T J^n$](https://latex.codecogs.com/svg.image?Q^n=(J^n)^T&space;J^n) in the **formula 10** ? It seems...