Vector fields, integrals, imaginary part and real part of the complex integra, complex integraion, closed curvesThe Pólya vector field for a complex-valued function u(x,y)+iv(x,y) is the vector field <u(x,y),-v(x,y)>. This field is displayed along a curve, allowing for a visual interpretation of the complex integral. The real part of the complex integral is the same as the integral of the tangential flow, while the imaginary part is given by the integral of the normal flowComponente Curricular::Educação Superior::Ciências Exatas e da Terra::Matemática