Kappa Symbol and Greek Letters: Complete LaTeX Reference
Date Published

The Kappa Symbol in LaTeX
Kappa (κ, Κ) is used across physics, statistics, and mathematics. Here's your complete guide.
Typing Kappa
Lowercase Kappa
Uppercase Kappa
Uppercase Kappa looks identical to the Latin K, so just use:
Variant Kappa
Common Uses of Kappa
Physics: Thermal Conductivity
Physics: Dielectric Constant
Statistics: Cohen's Kappa
Where:
p_o= observed agreement
p_e= expected agreement by chance
Cosmology: Curvature Parameter
Computer Science: Condition Number
Related Greek Letters
Commonly Used Together
The Full Greek Alphabet
Lowercase:
Uppercase:
Styling Kappa
Bold Kappa
Kappa with Subscripts
Kappa in Different Fonts
Example: Statistical Formula
Example: Physics Equation
Greek Letter Quick Reference Table
Use Greek Letters in Octree
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Quick-access Greek letter palette
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