The capital Greek letter (capital tau) is visually very similar to the upper-case Latin letter T. For that reason, refer to the usage of Capital T for how the symbol appears in math.
| Symbol | Format | Data |
|---|---|---|
| Τ | Unicode | |
| TeX | |
|
 |
SVG |
The Greek letter τ (tau) is used in trigonometry as a constant to represent a full rotation around a circle in radians. The value of τ is approximately 6.28 and can be calculated by dividing any circle's circumference by its radius.