Practice the pronunciation of Greek letters used in computer science and maths including lambda, mu, sigma, pi, and phi.
0 / 5 completed
1 / 5
How is the Greek letter 'lambda' (λ) pronounced?
The Greek letter lambda (λ) is pronounced /ˈlæmdə/ — 'LAM-duh'. 'Lam' = /læm/ (short /æ/ as in 'lamb'; the 'b' is silent). '-bda' = /də/ (schwa). Two syllables: LAM-duh, stress on the first. Non-native speakers sometimes sound the 'b' ('LAM-bduh'). In computing, 'lambda' denotes an anonymous function (lambda calculus) and AWS Lambda serverless functions: \'Pass a LAM-duh expression to the map function\'.
2 / 5
How is the Greek letter 'mu' (μ), as in 'microservices', pronounced?
The Greek letter mu (μ) is pronounced /mjuː/ — 'MYOO' in English (the /mj/ onset + long /uː/), though Modern Greek says 'MEE'. Single syllable: MYOO. It is the SI symbol for 'micro' (one millionth) and is often written 'µ'. Non-native speakers may say 'MOO'. In tech, μ is sometimes used as shorthand for 'micro' (e.g., 'µservices' for microservices) and for the mean in statistics: \'The latency is measured in MYOO-seconds (microseconds)\'.
3 / 5
How is the Greek letter 'sigma' (Σ/σ) pronounced?
The Greek letter sigma (Σ uppercase, σ lowercase) is pronounced /ˈsɪɡmə/ — 'SIG-muh'. 'Sig' = /sɪɡ/ (short /ɪ/). '-ma' = /mə/ (schwa). Two syllables: SIG-muh, stress on the first. Non-native speakers may use a diphthong ('SY-gmuh'). In computing and maths, uppercase Σ denotes summation, and lowercase σ denotes standard deviation: \'The aggregation is a SIG-muh over all the values\'.
4 / 5
How is the Greek letter 'pi' (π) pronounced?
The Greek letter pi (π) is pronounced /paɪ/ — 'PY' in English, exactly like the word 'pie' (Modern Greek says 'PEE'). Single syllable: PY. The diphthong /aɪ/ as in 'high'. Non-native speakers may say 'PEE'. π is the mathematical constant ~3.14159 and appears in names like 'Raspberry Pi' (deliberately spelled to evoke it) and the NumPy constant 'np.pi': \'Compute the circle area using PY times r squared\'.
5 / 5
How is the Greek letter 'phi' (φ) pronounced?
The Greek letter phi (φ) has two accepted English pronunciations: /faɪ/ — 'FY' (rhyming with 'sky') and /fiː/ — 'FEE'. The 'ph' is an /f/ sound (as in 'photo'), never /p/. Single syllable. In maths and computing, φ denotes the golden ratio (~1.618) and Euler's totient function; in statistics it can denote a correlation coefficient: \'The layout uses the golden ratio, FY, for its proportions\'.