def cosh(a):
'''Hyperbolic cosine of input'''
return _maths.cosh(a)
def cosh(a):
"""Hyperbolic cosine of input"""
return _maths.cosh(a)
def cosh(a):
'''Hyperbolic cosine of input'''
return _maths.cosh(a)
def cosh(a):
"""Hyperbolic cosine of input"""
return _maths.cosh(a)