# math.tau constant with example in Python

Python math.tau constant: Here, we are going to learn about the math.tau constant of math module with example in Python.
Submitted by IncludeHelp, on April 19, 2019

## Python math.tau constant

math.tau constant is a predefined constant, which is defined in math module, it returns the value of mathematical constant "τ" (Tau), the value is 6.283185307179586

Note: math.tau constant is available from Python 3.6

Syntax of math.tau constant:

```    math.tau
```

Return value: float – that is the value of mathematical constant "τ".

Example:

```    Input:
print(math.tau)

Output:
6.283185307179586
```

### Python code to demonstrate example of math.tau constant

```# python code to demonstrate example of
# math.tau constant

# importing math module
import math

# printing value of TAU
print("value of tau = ", math.tau)
```

Output

```value of tau = 6.283185307179586
```

Reference: Python math library

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