LaTeX Mu (μ) - Complete Guide
The Greek letter mu (μ) is used in mathematics and physics for mean, coefficient of friction, and micro prefix.
Symbol Preview
Mu
LaTeX Code
No package required
\muStandard mu symbol
What is the LaTeX Mu?
Mu is the twelfth letter of the Greek alphabet. In mathematics, it represents the mean (average) of a distribution. In physics, it often represents the coefficient of friction. In SI units, the micro prefix (μ) represents one millionth.
How to Use Mu in LaTeX
Method 1: Using \mu
✅No package required
Standard mu symbol
Example: Using \mu
\documentclass{article}
\begin{document}
% Using the Mu
Text with \mu
\end{document}Common Use Cases
The Mu symbol is commonly used in the following contexts:
Mean/Average
Represents the mean of a distribution.
Code
Mean: $\mu = \frac{1}{n}\sum_{i=1}^{n} x_i$Output
Mean: μ = (1/n)Σx_i
Coefficient of Friction
Used in physics for friction.
Code
Friction force: $F = \mu N$Output
Friction force: F = μN
Micro Prefix
Represents one millionth in SI units.
Code
Wavelength: $\lambda = 650$ μm (micrometers)Output
Wavelength: λ = 650 μm (micrometers)
Complete Examples
Mean of Normal Distribution
Normal distribution using mu
\documentclass{article}
\begin{document}
For a normal distribution with mean $\mu$ and standard deviation $\sigma$, the probability density function is:
$$f(x) = \frac{1}{\sigma\sqrt{2\pi}} e^{-\frac{(x-\mu)^2}{2\sigma^2}}$$
\end{document}Frequently Asked Questions
Which method should I use?
We recommend using the method marked as "Recommended" above. However, the best method depends on your specific needs:
- \mu: Standard mu symbol
Where do I use this symbol?
This symbol can be used:
- In mathematical equations (math mode)
- In regular text (if using text mode)
- In various document environments
Can I use this in display mode?
Yes, symbols that work in math mode (between $ $) also work in display mode (between $$ $$). This allows you to display the symbol on its own line with larger formatting.
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