# Python | Sympy Line.is_parallel() method

• Last Updated : 10 Feb, 2020
In Sympy, the function `is_parallel()` is used to check whether the two linear entities are parallel or not.

```Syntax: Line.is_parallel(l2)

Parameters:
l1: LinearEntity
l2: LinearEntity

Returns:
True: if l1 and l2 are parallel,
False: otherwise.```

Example #1:

 `# import sympy and Point, Line``from` `sympy ``import` `Point, Line`` ` `p1, p2 ``=` `Point(``0``, ``0``), Point(``1``, ``1``)``p3, p4 ``=` `Point(``3``, ``4``), Point(``6``, ``7``)`` ` `l1, l2 ``=` `Line(p1, p2), Line(p3, p4)`` ` `# using is_parallel() method``isParallel ``=` `Line.is_parallel(l1, l2)`` ` `print``(isParallel)`

Output:

`True`

Example #2:

 `# import sympy and Point, Line``from` `sympy ``import` `Point, Line`` ` `p1, p2 ``=` `Point(``0``, ``0``), Point(``1``, ``1``)``p3, p4 ``=` `Point(``3``, ``4``), Point(``6``, ``6``)`` ` `l1, l2 ``=` `Line(p1, p2), Line(p3, p4)`` ` `# using is_parallel() method``isParallel ``=` `Line.is_parallel(l1, l2)`` ` `print``(isParallel)`

Output:

`False`
My Personal Notes arrow_drop_up