The Fundamental Mathematics for Engineering 2 course provides basic and advanced knowledge of vector functions, multivariable functions, multiple integrals, line integrals, and surface integrals. The content includes: derivatives and integrals of vector functions, concepts of multivariable functions such as partial derivatives, gradients, free extrema, and maximum and minimum values on closed and bounded domains. The course also covers multiple integrals (double and triple integrals), line integrals, surface integrals, and important applications in calculating areas, volumes, and solving engineering problems. Important theorems such as Green's and the formula for changing variables are also presented in detail. The course combines theory and practical application, helping students develop mathematical thinking and problem-solving skills.