mu
mu — noun
- musingular
- musplural
1. the Greek alphabet has 24 letters, and mu — written as μ (lowercase) or Μ (upper
the Greek alphabet has 24 letters, and mu — written as μ (lowercase) or Μ (uppercase) — is the 12th one. In science and maths, the symbol μ has a few common uses: it can mean the average of a whole group, the amount of friction between surfaces, or the prefix for one millionth (micro-).
Indra learned that the Greek letter mu stands for the mean of a whole population.
μ = population mean in statistics
Mrs. Chen wrote μ = 0.4 for the friction between a cardboard box and the floor.
μ = coefficient of friction in physics
Kim spotted '7 μm' on a packet and learned the μ means one millionth of a metre.
Priya pointed to mu on the Greek alphabet chart, right between lambda and nu.
Chidi wrote μ = 72.4 in his lab book, using the Greek letter mu to mean the class average.
文法句型
the letter mu
mu + noun (mu particle)
用法筆記
Mu is usually written in its Greek form μ (lowercase) or Μ (uppercase) rather than spelled out as 'mu' in English text. The uppercase form is rarely used; the lowercase μ appears constantly in scientific and mathematical writing. When reading aloud, say 'myoo' (UK) or 'mew' (US).