Tutor jobs in Kazakhstan

I need to learn to solve differential algebraic equations(DAE) in MATLAB
I am already working on Matlab
I facing problems with solving Differential-algebraic equations by using mass matrix
I want clarify things related to this
Generally my project is in chemical engineering
I faced errors with inconsistent initial values for DAE system using...

I need to learn C# basics as soon as possible. Please message according to my budget.