copy_sign(x, y) Copies the sign from y to x.

next_plus(x) Returns the smallest representable number larger than x.

remainder_near(other, context=None) Return the remainder from dividing self by other. This differs from self

is_canonical(x) Returns True if x is canonical; otherwise returns False.

is_normal(x) Returns True if x is a normal number; otherwise returns False.

compare_signal(other, context=None) This operation is identical to the compare() method, except that all NaNs signal

as_tuple() Return a named tuple representation of the number: DecimalTuple(sign

math.log10(x) Return the base-10 logarithm of x. This is usually more accurate than log(x, 10).

cmath.cos(x) Return the cosine of x.

is_infinite() Return