Mu Symbol
About Mu Symbol
Μ is the Mu Symbol, the twelfth letter of the Greek alphabet in its uppercase form. Μ denotes the muon in particle physics and serves as the SI prefix micro, written μ, for 10 to the power of minus six.
【Pronunciation】 In English, Μ is most often pronounced MYOO (IPA: /mjuː/). This is simply the anglicized name of the Greek letter.
The uppercase Mu Symbol Μ is written as a distinct capital Greek glyph and is assigned codepoint U+039C in the Greek and Coptic Unicode block. In plain or sans-serif fonts it can be mistaken for the Latin letter M, so verify the typeface or context.
【Historical Origin】 Like every Greek letter, Μ was adapted from a Phoenician consonant and entered mathematical and scientific notation through the work of ancient Greek scholars, remaining in continuous use to the present day.
【Common Uses】 Μ is highly active across disciplines and frequently appears alongside other Greek capitals such as Δ (Δ), Σ (Σ), Π (Π) and Ω (Ω) in formulas, papers, and engineering drawings. Its clear shape and long tradition make it a standard symbol in many fields.
How to Type Mu Symbol
Windows Input
Method 1: Hold Alt and type 924 on the numeric keypad, then release Alt to get Μ.
Mac Input
Method 2: Press Control + Command + Space to open the Character Viewer, search for "greek" or "Mu Symbol", then select Μ.
HTML/CSS Input
HTML: Μ or Μ; CSS: content: "\039C";
LaTeX Input
The capital Mu Symbol Μ has no dedicated LaTeX command because it is identical to the Latin capital M; simply type M in math mode to produce Μ.
Mu Symbol FAQ
How is Μ pronounced?
The English pronunciation of Μ is MYOO (IPA: /mjuː/). It is the anglicized name of the Greek letter, used directly rather than described as "uppercase Μ".
What is the difference between Μ and the Latin letter M?
Μ (U+039C) is a Greek capital letter, whereas M is a Latin letter; their codepoints and glyphs differ. In a proper typeface Μ and M are clearly distinct, but in plain text or sans-serif fonts they can be confused, so rely on context.
How do I type Μ in Word, web pages, and LaTeX?
On Windows use Alt+924 on the numeric keypad; on Mac open the Character Viewer and search "greek" or "Mu Symbol"; on the web use the HTML entity Μ; in LaTeX simply type the letter M.