MathWorks Software Developer interview questions

Firstly, got a code test without time limit; then a phone interview with manager, later, two phone interviews with co-workers in that group, didn't got the on-site interview, don't know why, but I got an internship

The first phone interview was with an HR recruiter, and I was asked to describe a project I did in college, and some behavioral questions about multitasking and teamwork. The second phone interview was a technical interview with Linear Algebra questions, Calculus questions, Basic Matlab questions, programming questions and signal processing questions.