## Z-Axis

### The z-axis is a term commonly used in three-dimensional geometry and coordinate systems

The z-axis is a term commonly used in three-dimensional geometry and coordinate systems. It refers to the third dimension or axis that is perpendicular to both the x-axis and the y-axis. In a Cartesian coordinate system, the axes intersect at the origin, and the z-axis extends vertically upwards (positive direction) and downwards (negative direction).

The z-axis is often used to represent the depth or height dimension in a three-dimensional space. For example, when representing a point in three-dimensional space using Cartesian coordinates (x, y, z), the value of z determines the position of the point along the z-axis.

In applications such as computer graphics, the z-axis is crucial for rendering three-dimensional objects and determining their position in relation to a reference point or plane. It is commonly used in 3D modeling, animation, and game development to give objects a sense of depth and perspective.

Understanding the z-axis is essential for visualizing and working with three-dimensional objects and surfaces, allowing for accurate calculations, transformations, and analysis in various fields such as physics, engineering, and computer science.

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