Arithmetic Operators

The following arithmetic operators are available:

• X1 $+$ X2: Sum of X1 and X2.

• X1 - X2: Difference of X1 and X2.

• X1 $*$ X2: Product of X1 and X2.

• X1 / X2: Ratio of X1 and X2.

• X1 $*$ $*$ X2: X1 raised to the power of X2.

• $+$ X: Unary plus, has no effect on its argument.

• - X: Unary minus, negates its argument.