Signed aus Wikipedia.

Zum Beitrag
Sign (mathematics) - Wikipedia, the free encyclopedia
a:lang(ar),a:lang(ckb),a:lang(fa),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}a.new,#quickbar a.new{color:#ba0000}
/* cache key: enwiki:resourceloader:filter:minify-css:4:c88e2bcd56513749bec09a7e29cb3ffa */

Sign (mathematics)
From Wikipedia, the free encyclopedia
(Redirected from

Signed)
Jump to: ,

The

plus and minus symbols are used to show the sign of a number.
Not to be confused with the

sine function in trigonometry.
In

mathematics, the word sign refers to the property of being positive or

negative. Every nonzero

real number is either positive or negative, and therefore has a sign.

Zero itself is signless, although in some contexts it makes sense to consider a

signed zero. In addition to its application to real numbers, the word sign is used throughout mathematics to indicate aspects of mathematical objects that resemble positivity and negativity, such as the

sign of a permutation.
The word sign is also sometimes used to refer to various mathematical

symbols, such as the

plus and minus symbols and the

multiplication symbol. See the

table of mathematical symbols for more information on signs and symbols in mathematics.

## Contents

## Sign of a number

A

real number is said to be positive if it is

mehrSigned aus Wikipedia.

Zum Beitrag