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α碳原子為與有機物中與官能團相連的第一個碳原子（第二個為β碳原子，以此類推），如胺基酸中與羰基中的碳相連的碳原子即為α碳原子 天文測量學 的 赤經
Greek alphabet letters are used as math and science symbols.
Upper Case LetterLower Case LetterGreek Letter NameEnglish EquivalentΑαAlphaaΒβBetabΓγGammagΔδDeltadα碳原子為與有機物中與官能團相連的第一個碳原子（第二個為β碳原子，以此類推），如胺基酸中與羰基中的碳相連的碳原子即為α碳原子 天文測量學 的 赤經
The Greek letters you are most likely to see for angles (in geometry and trigonometry) are α (alpha), β (beta), γ (gamma), δ (delta), and θ (theta). And of course you'll be using π (pi) all the time. Make sure you know how to spell and pronounce at least these six Greek characters. Math uses Greek letters, such as π.
LetterNamePronouncedΑ, αalphaAL-fuh (AL rhymes with pal)Β, βbetaBAY-tuhΓ, γgammaGAMM-muhΔ, δdeltaDELL-tuhΑα (alpha) represents: the first angle in a triangle, opposite the side a. the statistical significance of a result. the false positive rate in statistics ("Type I" error) the fine-structure constant in physics. the angle of attack of an aircraft. an alpha particle (He 2+) angular acceleration in physics. the linear thermal expansion coefficient.
Greek letters can be written in LaTeX using commands like \alpha, \beta, \gamma, etc. Examples of Greek Letters α (alpha): Used to represent angles, coefficients, and as a variable in various equations. β (beta): Often used as a variable in mathematics or to
