TOEFL, Is this Important?
Yes, for every person whose mother tongue is other than English. TOEFL is used as an English language test across the world which accompanies the GRE score. It's really important to score good in the test.
What is MATLAB and how is it important?
MATLAB or Matrix Laboratory is used for simple and complex mathematical calculations. As we grow up and start to learn complex matrix operations, Matlab seems to be a viable option. The software is pretty straight forward. All you need to know is some specific commands to solve a problem
What exactly do we need to prepare for GRE?
GRE is all about practice and hard work. Everybody qualifies in GRE, but scoring a 315+ is what it takes to get an admit in a top 100 university. I have learned from my mistakes and have guided quite a few people to get better scores. The one thing that needs to be understood while preparing for GRE is focusing on the important topics like writing, increasing reading ability etc. The mathematics part is quite easy and straight forward, it's the verbal part that needs to be taken care of.