std::vector转eigen矩阵

要将`std::vector`转换为Eigen矩阵，可以使用`Eigen::Map`函数。首先，需要创建一个`Eigen::VectorXd`对象，并使用`Eigen::Map`将其与`std::vector`关联起来。具体代码如下所示：

std::vector<double> vec = {1.0, 2.0, 3.0}; // 假设有一个 std::vector<double>
Eigen::VectorXd eigenVec = Eigen::Map<Eigen::VectorXd, Eigen::Unaligned>(&vec<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
-  *1* *2* [Eigen::vector与std::vector的相互转换](https://blog.csdn.net/github_39582118/article/details/120309991)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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