# math.trunc() method with example in Python

Python math.trunc() method: Here, we are going to learn about the math.trunc() method with example in Python.
Submitted by IncludeHelp, on April 17, 2019

## Python math.trunc() method

math.trunc() method is a library method of math module, it is used to get the truncated integer value of a number, it accepts a number (either an integer or a float) and returns the real value truncated to an integral.

Note: If anything is passed except the number, the method returns a type error, if we pass a string – it will return "TypeError: type str doesn't define __trunc__ method"

Syntax of math.trunc() method:

```    math.trunc(n)
```

Parameter(s): n – an integer or a float number.

Return value: int – it returns an integer value that is the integral part of the number n.

Example:

```    Input:
a = 10.23

# function call
print(math.trunc(a))

Output:
10
```

### Python code to demonstrate example of math.trunc() method

```# Python code demonstrate example of
# math.trunc() method

# importing math module
import math

# numbers
a = 10
b = 10.23
c = -10
d = -10.67
e = 10.67

# printing the fractional and integer part
# of the numbers by using math.trunc()

print("trunc(a): ", math.trunc(a))
print("trunc(b): ", math.trunc(b))
print("trunc(c): ", math.trunc(c))
print("trunc(d): ", math.trunc(d))
print("trunc(e): ", math.trunc(e))
```

Output

```trunc(a):  10
trunc(b):  10
trunc(c):  -10
trunc(d):  -10
trunc(e):  10
```