Notation field notes

Approximately Symbol Blog

Clear, sourced guides to mathematical relation symbols and input methods.

Oct 5, 2026

How to Type the Greater Than or Equal Sign on Keyboard

Type the greater than or equal sign ≥ using copy-paste, Unicode codes, or the Windows Alt+8805 keyboard shortcut, with caveats for plain code.

Oct 7, 2026

Learn the congruent symbol ≅, its geometric meaning, and copy U+2245 plus HTML and LaTeX codes.

Oct 3, 2026

Copy the proportional symbol ∝ and learn its math meaning, Unicode U+221D, HTML and CSS codes, Windows Alt code, and LaTeX \propto command.

Oct 1, 2026

Learn the triple equal sign ≡: what it means in math and logic, how it differs from = and ≈, plus copy, Unicode, HTML, LaTeX and typing codes.

Sep 25, 2026

Understand the greater than sign (>), copy it, and find Unicode, HTML, keyboard, and LaTeX codes with math examples and comparisons.

Sep 23, 2026

Understand the less than sign, copy <, and find Unicode, HTML, keyboard, and LaTeX codes for math, documents, and the web.

Sep 29, 2026

Use the Excel not equal sign correctly: type <> in formulas and IF tests, and see why the visual ≠ character is for display only.

Sep 27, 2026

Learn tilde in LaTeX: when ~ is a non-breaking space, how to print a text tilde, and when to use \sim, \tilde, or \widetilde.

Sep 20, 2026

Use the not equal symbol on keyboard with copy-paste, Windows Alt+8800, Mac Option+=, and Unicode methods; learn when != or <> do not mean ≠.