numpy.sign(x[, out]) = Returns an element-wise indication of the sign of a number. The

numpy.conj(x[, out]) = Return the complex conjugate, element-wise. The complex conjugate of a complex number is obtained by

numpy.real_if_close(a, tol=100)

numpy.negative(x[, out]) = Numerical negative, element-wise.

numpy.signbit(x[, out]) = Returns element-wise True where signbit is set (less than zero).

numpy.arctanh(x[, out]) = Inverse hyperbolic tangent element-wise.

numpy.ldexp(x1, x2[, out]) = Returns x1 * 2**x2, element-wise. The mantissas x1 and twos exponents x2

numpy.ceil(x[, out]) = Return the ceiling of the input, element-wise. The ceil of the scalar x is the smallest

numpy.reciprocal(x[, out]) = Return the reciprocal of the argument, element-wise. Calculates 1/x.

numpy.arccos(x[, out]) = Trigonometric inverse cosine, element-wise. The inverse of