def arccosh(a):
'''Inverse hyperbolic cosine of input'''
return _maths.arccosh(a)
def arccosh(a):
"""Inverse hyperbolic cosine of input"""
return _maths.arccosh(a)
def arccosh(a):
'''Inverse hyperbolic cosine of input'''
return _maths.arccosh(a)
def arccosh(a):
"""Inverse hyperbolic cosine of input"""
return _maths.arccosh(a)