Main Difference
The main difference between Signed and Signature is that the Signed is a number property of being positive or negative and Signature is a handwritten mark made as a proof of identity and intent.
Signed vs. Signature
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Signed
In mathematics, the concept of sign originates from the property of every non-zero real number of being positive or negative. Zero itself is signless, although in some contexts it makes sense to consider a signed zero, and in some contexts it makes sense to call 0 its own sign. Along with its application to real numbers, "change of sign" is used throughout mathematics and physics to denote the additive inverse (negation, or multiplication by −1), even for quantities which are not real numbers (so, which are not prescribed to be either positive, negative, or zero). Also, the word "sign" can indicate aspects of mathematical objects that resemble positivity and negativity, such as the sign of a permutation (see below).
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Signature
A signature (; from Latin: signare, "to sign") is a handwritten (and often stylized) depiction of someone's name, nickname, or even a simple "X" or other mark that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory or signer. Similar to a handwritten signature, a signature work describes the work as readily identifying its creator. A signature may be confused with an autograph, which is chiefly an artistic signature. This can lead to confusion when people have both an autograph and signature and as such some people in the public eye keep their signatures private whilst fully publishing their autograph.
Wikipedia
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Signed (adjective)
Having a signature; endorsed.
"The signed check could be cashed."
Signed (adjective)
Having both positive and negative varieties.
"It wasn't until they tried to subtract 3 from 1 that the elementary school students realized they needed signed numbers."
Signed (adjective)
Furnished with signs and signposts; signposted.
Signature (adjective)
Distinctive, characteristic, indicative of identity.
"Rabbit in mustard sauce is my signature dish."
"The signature route of the airline is its daily flight between Buenos Aires and Madrid."
Signature (noun)
A person’s name, written by that person, used to signify approval of accompanying material, such as a legal contract.
Signature (noun)
The act of signing one's name.
Signature (noun)
The part of a doctor’s prescription containing directions for the patient.
Signature (noun)
Signs on the stave indicating key and tempo, composed of the key signature and the time signature.
Signature (noun)
A group of four (or a multiple of four) pages printed such that, when folded, they become a section of a book.
Signature (noun)
A pattern used for matching the identity of a virus, the parameter types of a method, etc.
Signature (noun)
Data attached to a message that guarantees that the message originated from its claimed source.
Signature (noun)
A mark or sign of implication.
Signature (noun)
A tuple specifying the sign of coefficients in any diagonal form of a quadratic form.
Signature (noun)
A resemblance between the external character of a disease and those of some physical agent, for instance, that existing between the red skin of scarlet fever and a red cloth; supposed to indicate this agent in the treatment of the disease.
Wiktionary
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Signature (noun)
a person's name written in a distinctive way as a form of identification in authorizing a cheque or document or concluding a letter
"the signature of a senior manager"
Signature (noun)
the action of signing a document
"the licence was sent to the customer for signature"
Signature (noun)
a distinctive pattern, product, or characteristic by which someone or something can be identified
"the chef produced the pâté that was his signature"
"his signature dish"
Signature (noun)
short for key signature or time signature
Signature (noun)
a letter or figure printed at the foot of one or more pages of each sheet of a book as a guide in binding.
Signature (noun)
a printed sheet after being folded to form a group of pages.
Signature (noun)
the part of a medical prescription that gives instructions about the use of the medicine or drug prescribed.
Oxford Dictionary
Signature (noun)
A sign, stamp, or mark impressed, as by a seal.
Signature (noun)
Especially, the name of any person, written with his own hand, employed to signify that the writing which precedes accords with his wishes or intentions; a sign manual; an autograph.
Signature (noun)
An outward mark by which internal characteristics were supposed to be indicated.
Signature (noun)
A resemblance between the external characters of a disease and those of some physical agent, for instance, that existing between the red skin of scarlet fever and a red cloth; - supposed to indicate this agent in the treatment of the disease.
Signature (noun)
The designation of the key (when not C major, or its relative, A minor) by means of one or more sharps or flats at the beginning of the staff, immediately after the clef, affecting all notes of the same letter throughout the piece or movement. Each minor key has the same signature as its relative major.
Signature (noun)
A letter or figure placed at the bottom of the first page of each sheet of a book or pamphlet, as a direction to the binder in arranging and folding the sheets.
Signature (noun)
That part of a prescription which contains the directions to the patient. It is usually prefaced by S or Sig. (an abbreviation for the Latin signa, imperative of signare to sign or mark).
Signature
To mark with, or as with, a signature or signatures.
Webster Dictionary
Signed (adjective)
having a handwritten signature;
"a signed letter"
Signed (adjective)
used of the language of the deaf
Signature (noun)
your name written in your own handwriting
Signature (noun)
a distinguishing style;
"this room needs a woman's touch"
Signature (noun)
a melody used to identify a performer or a dance band or radio/tv program
Signature (noun)
the sharps or flats that follow the clef and indicate the key
Signature (noun)
a sheet with several pages printed on it; it folds to page size and is bound with other signatures to form a book
Princeton's WordNet
Signature Illustrations
