Cosh

Cosh(x)

x is scalar

Return a scalar which is the hyperbolic cosine function of x, where x is in radian unit

x is matrix

Return a matrix in which the element is the hyperbolic cosine function of the element in x, where x is in radian unit

Input

Output

cosh(PI)

cosh(1+i)

cosh([1+i, 0, 1-i])

cosh([i, 1-3i; -2i, 5])