HP HP-20S - Page 13

Chain calculations are interpreted according to the priority of the op-
erators in the expression. Calculate 4 + (9 X 3):
4[+)9 [
3 (=)
9.0000
31.0000
The addition is de-
layed; has higher
priority than [+].
Calculates
4 + (9 x 3).
Negative Numbers. Enter the number and press [¥].
Calculate —75 + 3:
Keys:
75
=3 (=)
Calculate 0.4 — ¢ 1.1;
4511 B0
(=)
Display:
—75_
—25.0000
—-1.1_
0.3329
0.0671
Description:
Changes the sign of
75.
Calculates the result.
Calculates e~ 11,
Completes the
calculation.
1: Getting Started 11