HP 50g User Manual page 20

Let's try some other simple operations before trying the more complicated
expression used earlier for the algebraic operating mode:
123/32
2
4
3
( 27)
Note the position of the y and x in the last two operations. The base in the
exponential operation is y (stack level 2) while the exponent is x (stack
level 1) before the key Q is pressed.
operation, y (stack level 2) is the quantity under the root sign, and x (stack
level 1) is the root.
Try the following exercise involving 3 factors: (5 + 3)
5`3+ Calculates (5 +3) first.
2X
Let's try now the expression proposed earlier:
3`
5`
3`
3*
Y
-
*
23`Enter 23 in level 1, 14.66666 moves to level 2.
3Q
/
2.5Enter 2.5 level 1
!¸
Page 1-9
Completes the calculation.
⎛
⎜
3 5
⎝
23
Enter 3 in level 1
Enter 5 in level 1, 3 moves to level 2
Enter 3 in level 1, 5 moves to level 2, 3 to level 3
Place 3 and multiply, 9 appears in level 1
1/(3 3), last value in lev. 1; 5 in level 2; 3 in level 3
5 - 1/(3 3) , occupies level 1 now; 3 in level 2
3 (5 - 1/(3 3)), occupies level 1 now.
Enter 3, calculate 23
(3 (5-1/(3 3)))/23
2.5
e , goes into level 1, level 2 shows previous value.
123`32/
27R3@»
Similarly, in the cubic root
⎞
1
⎟
⎠
3 3
2 5 .
e
3
3
into level 1. 14.666 in lev. 2.
3
into level 1
4`2Q
2