The distinguishing feature of a quitclaim deed is the lack of a warranty of title. With a quitclaim deed, the grantor makes no assurances. The grantee simply takes whatever title the grantor has. The grantor is not liable if the title is defective.
English[edit] signum function â(plural signum functions) ( 1 mathematics) The function that determines the sign of a real number, yielding -1 if negative, +1 if positive, or otherwise zero.  German: Signumfunktion f.
It follows that whenever x is not equal to 0 we have. Similarly, for any real number x, The signum function is the derivative of the absolute value function (up to the indeterminacy at zero): Note, the resultant power of x is 0, similar to the ordinary derivative of x. The numbers cancel and all we are left with is the sign of x.