经典案例

u2212

2025-06-29

The character "−" (U+2212) is the Unicode Minus Sign. Here's what you need to know:

Key Details:

1. Symbol Type:

Mathematical operator for subtraction/negative values (distinct from the shorter hyphen `-`).

2. Appearance:

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Longer than a regular hyphen `-` (− vs. -).

Matches the plus sign `+` in height and alignment when used in equations.

3. Common Uses:

u2212
  • Mathematics: `5 − 3 = 2`
  • Negative numbers: `−10°C`
  • Financial contexts: `−$500` (deficit)
  • Physics/engineering (e.g., forces, charges).
  • 4. Technical Notes:

  • Unicode: `U+2212`
  • LaTeX: `-` (renders as minus sign in math mode).
  • HTML: `−` or `−`
  • Did you mean to ask something specific about this symbol? For example:

  • How to type it on a keyboard?
  • Its use in equations vs. hyphens?
  • Why it appears in a document/code?
  • Mathematical properties?
  • Let me know—I’ll clarify further!