Line Integration With Semicircular Path Around Pole Symbol
⨓ represents line integration using a semicircular path around a pole.
U+2A13
The symbol ⨓ (U+2A13) is a mathematical operator related to contour-style integration. It’s commonly referenced in contexts where a path wraps around a singularity (a pole).
Line Integration With Semicircular Path Around Pole Symbol Meaning
⨓, named “LINE INTEGRATION WITH SEMICIRCULAR PATH AROUND POLE,” is used to indicate a line integral taken along a semicircular contour around a pole. This notation often appears in advanced calculus and physics treatments of integrals near singularities, where the chosen path shape (semicircle) matters for the setup and evaluation. When writing formulas, the symbol helps distinguish this specific contour integration from other path or curve integrals. In practical terms, it signals that the integral is being performed around a pole using a semicircular detour, consistent with the intended analysis or derivation.
Common uses
- •Writing contour or semicircular path integrals in math notes
- •Documenting steps in complex analysis derivations involving poles
- •Formatting physics solutions that reference semicircular detours
- •Labeling operators in textbooks, worksheets, and lecture slides
- •Creating consistent equation symbols in technical documents
Examples
⨓ Line Integration with Semicircular Path Around Pole
- ⨓Evaluate \\(\\,\\displaystyle \\int_{\\langle\\text{semi-circle}\\rangle} \\! \\cdot \\,\\) using ⨓.
- ⨓In complex analysis, ⨓ marks the semicircular path around a pole.
- ⨓Compute the contribution from the semicircle indicated by ⨓.
- ⨓Set up the integral near the singularity using the ⨓ notation.
- ⨓The line integration around the pole is written with ⨓ in the derivation.
Variations
Ready to copy
Technical codes
| Unicode | U+2A13 | |
| HTML Entity | ⨓ | |
| HTML Code | ⨓ | |
| CSS | \2A13 |
FAQ
What does ⨓ mean?
⨓ denotes line integration with a semicircular path around a pole (Unicode name: LINE INTEGRATION WITH SEMICIRCULAR PATH AROUND POLE).
How do I copy the symbol ⨓?
You can copy it directly as “⨓”, or paste the provided variants such as its HTML entity (⨓) or Unicode escapes (\\2A13 / \\u{2A13}).
What is the Unicode code point for ⨓?
The Unicode code point for ⨓ is U+2A13.
Is ⨓ the same as a regular integral sign?
No. ⨓ is a specific mathematical operator-like symbol indicating semicircular path line integration around a pole, rather than the generic integral sign.