Beta Symbol (β)

Beta Symbol uses lowercase Greek beta, β, at U+03B2. It can appear in Greek text, as a variable, or as a field-specific coefficient. The encoded character remains the same even when the definition changes.

A model may use β = 0.8 or a family of coefficients such as β₁, β₂, and β₃. Those subscripts distinguish variables inside the model; they do not create new beta characters. Software teams may also use the word “beta” for a prerelease, but that product-stage meaning is not a Unicode property of β.

Uppercase Beta Β is a separate character and often looks like Latin capital B. Lowercase β can also be confused with the German sharp s ß in unfamiliar fonts. A code-point check prevents those substitutions.

The page should state “Greek small letter beta” when the script is important. In a formula, the document must define the coefficient or parameter. In ordinary Greek text, the letter follows language rules rather than a mathematical definition.

The Unicode Greek chart and existing publishing references provide the factual basis. No financial, biomedical, or software-specific beta explanation is expanded unless a dedicated source and a separate intent justify it.

Practical strings already approved for Beta Symbol include Greek letter: β, Coefficient: β = 0.8, Subscripted variable: β₁, Greek sequence: α, β, γ, and Label: beta (β). For Beta Symbol, they are drawn from greek text, variables, scientific notation, and symbol references and should remain available as regression tests after any content or template update.

For encoded output on Beta Symbol, confirm that β still resolves to U+03B2. The Beta Symbol rules state: Use U+03B2 for lowercase beta. Define the technical meaning at first use. Keep Greek beta distinct from Latin B and German ß. Verification sources for Beta Symbol include Unicode, W3C/WCAG, and WHATWG HTML, with beta and Greek Small Letter Beta retained as lookup terminology.