LaTeX Kappa (κ) - Complete Guide
The Greek letter kappa (κ) is used in mathematics and physics for curvature, conductivity, and other quantities.
Symbol Preview
Kappa
LaTeX Code
No package required
\kappaStandard kappa symbol
What is the LaTeX Kappa?
Kappa is the tenth letter of the Greek alphabet. In differential geometry, it represents curvature. In physics, it can represent thermal conductivity or other properties. It appears in various scientific and mathematical contexts.
How to Use Kappa in LaTeX
Method 1: Using \kappa
✅No package required
Standard kappa symbol
Example: Using \kappa
\documentclass{article}
\begin{document}
% Using the Kappa
Text with \kappa
\end{document}Common Use Cases
The Kappa symbol is commonly used in the following contexts:
Curvature
Used in differential geometry for curvature.
Code
The curvature of a curve is $\kappa$.Output
The curvature of a curve is κ.
Thermal Conductivity
Used in physics for thermal conductivity.
Code
Thermal conductivity: $\kappa = 50$ W/(m·K)Output
Thermal conductivity: κ = 50 W/(m·K)
Complete Examples
Curvature Formula
Curvature formula using kappa
\documentclass{article}
\begin{document}
The curvature $\kappa$ of a curve is related to the second derivative: $\kappa = \frac{|f''(x)|}{(1+(f'(x))^2)^{3/2}}$.
\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:
- \kappa: Standard kappa 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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