Scale-down drawing
Each table defines a specific data structure and specifies the data type for each column.
Scaled-down diagram, the map is also a scaled-down diagram, see the reduced-scale map for details
"Data processing cycle" is not strictly a pure mathematical concept, but a process term in computer science and management; from a mathematical perspective, its core connection is with periodic functions and the periodic analysis of time series.
It was originally called 'Analysis situs,' and it's a branch of geometry that studies the overall properties of shapes (or sets) that stay the same under continuous deformation.
A sequence is a list of numbers arranged in a certain order, where each number is called a term. The nth term is usually denoted as aₙ. If the relationship between the nth term and its position n can be expressed with a formula, it’s called the general term formula.
The sun mainly has three types of movement—it rotates on its own axis, revolves around the center of the galaxy along with the solar system, and the apparent motion we see from Earth.
A number line is a straight line with a defined origin, positive direction, and unit length, used to represent numbers on the line with points. It's a basic tool in math for representing real numbers.
A trapezoid is a quadrilateral with only one pair of parallel sides. The parallel sides are called the bases, the non-parallel sides are called the legs, and the vertical distance between the bases is the height. Common types include isosceles trapezoids and right trapezoids.
Trigonometry is a tool in math used to describe the relationship between angles and side lengths. The most common ones are sine, cosine, and tangent, which can turn angles into actual numbers and are widely used in physics, engineering, and construction calculations.