tiếp diện

Mặt phẳng tiếp diện chạm vào bề mặt của quả cầu.

Definition

1. Noun (Mathematics):
   • Tangent plane: A plane that touches a curved surface at exactly one point, known as the point of tangency, without crossing it. This is the primary and technical meaning of the term.

Usage Examples

• Noun:
  • Để tính toán, trước tiên chúng ta cần xác định phương trình của tiếp diện. (To calculate, we first need to determine the equation of the tangent plane.)
  • Tiếp diện của hình cầu tại một điểm là duy nhất. (The tangent plane to a sphere at a point is unique.)

Advanced Usage

• This term is almost exclusively used in mathematical contexts, specifically in geometry and calculus, to describe a fundamental concept related to surfaces.

Variants and Related Words

• Mặt phẳng tiếp tuyến: This is a more descriptive and common Vietnamese phrase for "tangent plane," often used interchangeably with "tiếp diện."
• Tiếp tuyến (n): Tangent line. The concept of a tangent line to a curve is the one-dimensional analogue to a tangent plane for a surface.

Synonyms

• Tangent plane: The direct English equivalent.

Related Concepts

• Điểm tiếp xúc (n): Point of tangency. The single point where the tangent plane touches the surface.
• Pháp tuyến (n): Normal line. A line perpendicular to the tangent plane at the point of tangency.