Everything as per discussions done before on glassdoor. the questions i got are, Math - 1. What is a invertible matrix? 2. What is the determinant of inv(A)? 3. What is left inverse and right inverse? 4. Define eigen vectors and how you calculate them. 5. What are definite and indefinite integrals? 6. Define order and degree of a differential equation. C language - 7. for(i=0;i<=9;i++){print i} and for(i=0;i<=9;++i){print i}. difference in outputs. 8. Modulus operator. What are the restrictions on it? Any other way to find even or odd number. 9. Difference between #define A 100 and const int A 100 10.Difference between #include<> and #include"" 11.One line code to find a duplicate entry in an array. Controls - 12.Why use open loop control for stepper motors? 13.How to decide when to use open loop and closed loop control? 14.Example for positive feedback control system. 15.Advantages of negative feedback 16.Gain margin of 1st order system. 17.What are bode plots? 18.What is observer canonical form? what is its use? Does it exist for all systems? 19.how to find poles from state space representation? 20.What does it mean if A and B are zero matrices? 21.What is exponential stability? 22.What is lyapunov stability? Matlab - 23.How will you plot the points (1,11), (2,22) and (3,33) with green stars? 24.What is the difference between function workspace and script workspace? 25.Given array of 100 elements. Create another array which contains every third element of given array. One line code. (Hint: Use ':' operator) 26.Difference between A^2 and A^.2 27.Difference between A' and A.' 28.What does '%' operator do? 29.What does '%%' operator do? (i knew this, didn't strike me then :/ blasted memory) 30.What is the use of ellipses ( ... ) ?