math

The last major philosopher, mathematician, and astronomer of ancient Greece, a representative of Neoplatonism, he led the Platonic Academy in Athens for nearly fifty years, and his ideas had a profound impact on Byzantine, Islamic, and medieval European philosophy.

If you want to get an intuitive understanding of translation, you can check out math teaching videos. The basic idea is to move a shape the same distance in a specific direction on a plane. This movement doesn’t change the shape or size of the figure, only its position, and it’s a fundamental concept in geometric transformations.

In geometry, two lines in the same plane that never intersect (and never coincide) are called parallel lines.

It's a closed shape on the same plane, made up of two sets of parallel line segments. A parallelogram is a four-sided shape where the opposite sides are each parallel.

The average is just adding up a set of data and then dividing by the number of items, used to represent the general level of that set of data. It's the most commonly used statistical indicator, for example, calculating average grades or average salary uses it, but be careful—if the data has especially large or small numbers, the average can get skewed.

Balance equations are mainly used to describe the mathematical expressions of objects being in force balance or chemical reaction equilibrium. In mechanics, the most common case is when the resultant force and the resultant moment are zero. In physical mechanics, they are used to calculate unknown forces on structures; in chemistry, they describe the concentration relationships when a reaction reaches stability.

The square root is actually the inverse operation of squaring. If the square of a number equals a, then that number is the square root of a, denoted as ±√a.

Frequency is just the number of times a certain data point or event occurs, and it's the most basic counting measure in statistics.

Deviation, also called apparent error, refers to the difference between an individual measurement and the average of measurements. It can be used to gauge how precise the measurement results are.

A parabola is the path of points in a plane that are equidistant from a fixed point (the focus) and a fixed line (the directrix). In math, it's also the graph of a quadratic function.