+

expr1 + expr2

Add.

-

expr1 - expr2
-expr

Subtract.
Unary minus. Negates expr.

*

expr1 * expr2

Multiply.

/

expr1 / expr2

Divide.

\

expr1 \ expr2

Integer divide. Both operands are rounded to integers before doing the division.

Mod

expr1 Mod expr2

Remainder after integer division. Both operands are rounded to integers before doing the division.

^

expr1^expr2

Raise expr1 to power of expr2.