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总共两轮电面,第一轮HR,第二轮技术。拿到onsite了以后因为各种原因实在不想搬家到麻省,就withdraw了。
Glassdoor上这个职位的面经一大把,而且重合度很高,说明不怎么换题……
我申的是EE-control方向,准备的时候基本就是去glassdoor把题目分类整理一下然后一个个准备。所以下面列的问题,不是我被问到的,而是我从glassdoor上搜集来的。实际被问到的问题我能想起来的都加粗了。下面详细说:
第一轮HR就是问些behaviour questions,why mathworks啊,describe a challenge啊之类的。
第二轮技术面,问题分以下几类,有的题目我在括号里写了简短的答案:
1. 数学 - 微积分、微分方程、线性代数之类的
- Find eigenvalues and eigenvectors of a 2x2 matrix (列出eigenvector定义然后解二元一次方程组) - Find the maximum area of a rectangle under a curve (写出面积表达式然后求导求二次导) - Rank of matrix (the size of the largest collection of linearly independent columns of A (the column rank) or the size of the largest collection of linearly independent rows of A (the row rank). For every matrix, the column rank is equal to the row rank) -Eigenvalues of a matrix
-Eigenvector of a matrix
-Inverse of a matrix -definite integral and indefinite integral -order of differential equation -gitive feedback preferred? - What is PID controller and signify all aspects - Effects of poles on rise time - difference between open/close loop control - what is the criterion of an LTI system to be stable in the continuous time domain? Why? - what is the criterion of an LTI system to be stable in the discrete time domain? Why?
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