numpy.multiply(x1, x2[, out]) = Multiply arguments element-wise.

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

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

numpy.sinc(x)

numpy.subtract(x1, x2[, out]) = Subtract arguments, element-wise.

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

numpy.add(x1, x2[, out]) = Add arguments element-wise.

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

numpy.around(a, decimals=0, out=None)

numpy.real_if_close(a, tol=100)