# What quantities are calculated with – vector or scalar? In all cases, calculations are made with scalar values. In the case of vectors, their projections on coordinate axes are used for calculations.

A quantity in physics and mathematics is called the properties of physical bodies, measured by performing mathematical operations. They have units of measurement and depend on physical laws and axioms. Scalar and vector quantities with different characteristics and parameters are distinguished.

Scalar values ​​are characterized by only one parameter – a numeric value. They are divided into 2 types:
Pure scalars. They are characterized by a numerical value that is not dependent on the reference axes – the lines of intersection of flat surfaces in a single coordinate system.
Pseudoscalars. They are found by calculating a number, the sign of which depends on the positive direction of the axes in the coordinate system. Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.