Power Functions

In ALG mode, to calculate a number y raised to a power x, key in y x, then

press .

 

 

To Calculate:

Press:

Display:

123





 

 



641/3 (cube root)

Õ64



 



 

 

Percentage Calculations

The Percent Function. The key divides a number by 100.

To Calculate:

Press:

Display:

27% of 200

Õ2 

 

7



200 less 27%

 

 

Õ27

25 plus 12%

 

 

Õ12



 

 

 

 

 

To Calculate:

 

Press:

 

 

 

 

x% of y

 

 

y Õx

Percentage change from y to x. (y0)

 

y Õx

 

 

 

 

Example:

Suppose that the $15.76 item cost $16.12 last year. What is the percentage change from last year's price to this year's?

Keys:Display:



Õ   

Description:

This year's price dropped about 2.2% from last year's price.

ALG: Summary C-3