↩ 🔵 🔵 🔵 ❪✺_ₜₛ❫ Spectral Fitting Typesets ○ ❪𝛿❫ Spectral Fitting Quantities ○ ❪𝛿‘₀❫ Statistic Portals ○ Cash Statistic ○◂ Chi-Squared (χ²) ○◂ᴴᴱᴬ