Supplementary mathematics/Surface integral

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In mathematics, a double integral or a surface integral is a type of dual-use 2D-3D integral that is used to add a group or data of values and intervals associated with points on a 2D and 3D surface. Calculating the surface integral is similar to calculating the surface area using the double integral except for the function inside the integral.

3D and 2D Cartesian, Cylindrical and Spherical coordinate fields in scalar continuous fields, algebraic, rational and numerical scalar value function and in 3D and 2D Heli fields, vector value function returns the vectors in coordinate or numerical form based on their dimensions. Like linear integrals, surface integrals are of two types:

1-Surface integral in scalar function (numerical function)

2-surface integral in vector function (coordinate function)

Surface integral or two-dimensional scalar function is also a simple generalization of double integral, while surface integral of vector functions plays an important role in the basic theorem of calculus.