HP 6S manual Re-using arithmetic operations, Using memory, Fraction arithmetic

Re-using arithmetic operations

++

or

**

etc

Press the arithmetic operator key twice to re-use an arithmetic operation on a new number. The calculator stores the operation and applies it when you enter another number and press =. Store a calculation for re-use by enclosing it in brackets.

Clear the stored arithmetic operation by pressing Ô.

3+2.3	3++2.3=	5.3
6+2.3	6=	8.3
9+2.3	9=	11.3
4(3×6)	4**(3*6=	72.
-5(3×6)	5Ó=	-90.

Using memory

´

m r

³

Ô

¡

f e

The HP 6S scientific calculator has one independent memory. M is displayed when there is a value in memory.

Press Ô to clear the display or cancel the current calculation without clearing the memory. Press ´ to store the displayed value in memory.

Press m to add the displayed value to the memory.

Press r to retrieve the contents of memory—to determine its value or include it in your calculation.

Press I³ to display the contents of memory and replace it with the value that was displayed before the keys were pressed.

Press ¡ to clear the display and the memory (solar model). Press fe to clear the display and the memory (battery model).

Fraction arithmetic

Ë

Press to enter fractions.

Press Ë after = to display the fraction as a decimal.

In the display, a fraction is reduced to its lowest terms when you press a function command key (×,÷,+,-) or =.

4 5/6 × (3+12/3) ÷ 78/9
4Ë5Ë6*(3+1Ë2Ë3)d7Ë8Ë9=	2Ö61×71.
Ë	2.86

Calculations 11