ALG: Summary
C–5
File name hp 33s_user's manual_English_E_HDPM20PIE30.doc Page : 409
Printed Date : 2005/10/17 Size : 13.7 x 21.2 cm
Parentheses Calculations
In ALG mode, you can use parentheses up to 13 levels. For example, suppose
you want to calculate:
9
1285
30
×
−
If you were to key in 30 ¯ 85 Ã, the calculator would calculate the
intermediate result, 0.3529. However, that’s not what you want. To delay the
division until you’ve subtracted 12 from 85, use parentheses:
Keys: Display: Description:
30 ¯
º
y 85 Ã
No calculation is
done.
12 º
|
Calculates 85 − 12.
¸ 9
_
Calculates 30/73.
Ï
Calculates 30/(85 −
12) × 9.
You can omit the multiplication sign (×) before a left parenthesis. Implied
multiplication is not available in Equation mode. For example, the expression 2 ×
(5 – 4) can be entered as 2
º y 5 Ã 4 º
|, without the ¸ key
inserted between 2 and the left parenthesis.
Chain Calculations
To do a chain calculation, you don’t need to press Ï
after each operation,
but only at the very end.
For instance, to calculate
360
12750×
you can enter either:
