Python/maths/abs.py

29 lines
464 B
Python
Raw Normal View History

"""Absolute Value."""
def abs_val(num):
"""
Find the absolute value of a number.
>>> abs_val(-5.1)
5.1
>>> abs_val(-5) == abs_val(5)
True
>>> abs_val(0)
0
"""
2019-10-08 08:24:01 +00:00
return -num if num < 0 else num
def test_abs_val():
"""
>>> test_abs_val()
"""
assert 0 == abs_val(0)
assert 34 == abs_val(34)
assert 100000000000 == abs_val(-100000000000)
2019-10-05 05:14:13 +00:00
if __name__ == "__main__":
print(abs_val(-34)) # --> 34