HP HP-28S User Manual

For multiplication the order of the numbers doesn't matter. However,
the order is important for division. Next calculate 182/14.
1 82 I ENTER I 3: 64
14
'+l 2: 78
L2...J 1: 13
IiIDIiBIHIII3:I!IIDmGmll
The result is 13.
Powers and Roots
The order of the numbers is important for both powers and roots.
Calculate
53.
5 I ENTER I
3.~
The result is 125.
3: 78
2: 13
1: 125
IiIDIiBIHIII3:I!IIDmGmll
To calculate V"2401 , first put 2401 on the stack.
2401 I ENTER I
3: 13
2: 125
1: 2401
IiIDIiBIHIII3:I!IIDmGmll
Now raise 2401 to the Ij4 power.
4 .o:EJ.~
3: 13
2: 125
1: 7
IiIDIiBIHIII3:I!IIDmGmll
The result is 7.
42 2: Doing Arithmetic
I

HP HP-28S Specifications

General

Brand	HP
Model	HP-28S
Category	Calculator
Language	English