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# what is the vector analysis?

what is the vector analysis? Vector analysis is the mathematical analysis used for understanding the core concepts of electromagnetic field theory. It involves:

- vector algebra
- orthogonal coordinate systems
- vector calculus

### what is the vector algebra?

Vector algebra discusses about the arithmetic operations on vectors quantities like addition subtraction and multiplication. In vector addition and subtraction, we use the parallelogram rule while for vectors multiplications we have scalar and vector product.

### orthogonal coordinate systems

These are the coordinate systems in which coordinates are perpendicular to each other. There is always an angle of 90 degree between the axis. Three types of orthogonal coordinates systems are:

- cartesian or rectangular coordinate systems.
- cylindrical coordinate systems
- spherical coordinate systems.

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