HP 33s 6–14, Order, Example, Meaning, Operation, Equations, 6–14 Entering and Evaluating Equations

Order	Operation	Example
1	Functions and Parentheses	1%-2,1%-2
2	Power ( )	%:
3	Unary Minus (^)	.
4	Multiply and Divide	%º&, ª
5	Add and Subtract	-,.
6	Equality	/

So, for example, all operations inside parentheses are performed before operations outside the parentheses.

Examples:

Equations	Meaning
º:/	a ⋅ (b3) = c
1º2:/	(a ⋅ b)3 = c
-ª/	a + (b/c) = 12
1-2ª/	(a + b) / c = 12
01!-(. 2:	[%CHG ((t + 12), (a – 6)) ]2

You can't use parentheses for implied multiplication. For example, the expression p (1 – f) must be entered as º1.2, with the "º" operator inserted between P and the left parenthesis.

6–14Entering and Evaluating Equations