The plus sign (+) is a common symbol in mathematics, used in addition. It is drawn as a cross with horizontal and vertical lines. It is used to denote positive functions.

In a maths question, we could use the plus sign like this: ${\displaystyle 1+2=3}$

In Unicode

The Unicode codepoint for this character is U+002B PLUS SIGN.

Challenge question

5² +6 is 31 now and ${\displaystyle \left({\frac {1}{2}}\right)+{}_{p}F_{q}\left({a_{1},\ldots ,a_{p} \atop b_{1},\ldots ,b_{q}};z\right)}$is ???

Write the answer in the comments!