The cross is a religious symbol for the Christian religion. The symbol takes the shape of two perpendicular lines; sometimes, they are not equal in length. The word cross comes from the Latin origin "crux," which is a device used for torture. The symbolism of the cross in the Christian religion started when Jesus was tortured on a two perpendicular wooden bar. The symbol is sometimes different from a group to another like the Black Latin cross, Orthodox cross and simple cross potent of Jerusalem.

In math, the cross symbol is used for summation of two numbers, mathematical equations, and iteration in programming languages. It is known as the plus sign.