Apple Newton Works Graphing Calculator - Manual (Page 6)

x y z is interpreted as x multiplied by y, then that product multiplied by z.
Use parentheses to avoid ambiguity about the order of calculations. The expressions
in parentheses are solved first.
For example, if you type:
3*(4+6)
then the calculation 4 + 6 will be performed first.
For more information, see “Order of Evaluation,” next.
Order of evaluation
The graphing calculator evaluates calculations in the following order:
m Calculations inside parentheses. For example, in the expression 3 * (4 + 6), 4 + 6
is evaluated first and the result (10) is multiplied by 3.
m Functions, such as sin or log
m Factorials (evaluated left to right)
m Exponent operator (evaluated right to left)
m Unary minus (for example, –a)
m Multiplication and division (evaluated left to right). For example, in the expression
2 + 3 * 6, 3 * 6 is evaluated first.
m Addition and subtraction (evaluated left to right)
6 Chapter 1