HP HP-67 - Page 37

Getting Started 33
Other arithmetic functions are performed the same way:
To perform Press Display
12 -3 12 38
12 X3 12 HED 3 683
12 +3 12 GNED 3 8
The [ key is also a two-number operation. It is used to raise numbers
to powers, and you can use it in the same simple way that you use
every other two-number function key:
1. Key in the first number.
2. Press to separate the first number from the second.
3. Key in the second number (power).
4. Perform the operation (press @3 0%).
When working with any function key (including (¥]), you should
remember that the displayed number is always designated by x on the
function key symbols.
The number displayed is always x.
So means square root of the displayed number, means
1
T T L tc.
displayed number e
Thus, to calculate 3°:
Press Display
3
6 x, the displayed number,
is now six.
h] 729.00 The answer.