Atanh

Atanh(x)

x is scalar

Return a scalar which is the inverse hyperbolic tangent function of x, where result is in radian unit

x is matrix

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

Input

Output

atanh(0.6)

atanh(1+i)

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

atanh([-2.3, 1-3i; -2i, 5])