Science, Maths & Technology

### Become an OU student Using a scientific calculator

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# 12.2 Common operations

To Key sequence
Turn on Turn off  (OFF)

Note that the calculator will automatically turn off if not used for about 6 minutes.  (SETUP)  (◄CONT►) then use and to adjust, and press when finished.

Restore the factory settings  (CLR) (Setup) (Yes) Clear the contents of all memories  (CLR) (Memory) (Yes) Restore the default settings and clear all memories  (CLR) (All) (Yes) Cancel a calculation, or exit menus  Obtain a decimal answer in Math mode  Toggle between exact and decimal answers in Math mode Toggle between displaying fractions as improper fractions or mixed numbers in Math mode   Use the result of the previous calculation… … e.g. to find 42 minus the previous result     Store a value in ‘M’ memory  (STO) (M)

Clear a value stored in the M memory   (STO) (M)

Add a value to that in the ‘M’ memory Subtract a value from that in the ‘M’ memory  (M-)

Display the value stored in the ‘M’ memory  (M)

Use the value in the ‘M’ memory in a calculation…  … e.g. to find 42 minus the value in the ‘M’ memory     (M) Set angles to be measured in degrees  (SETUP) (Deg)

Set angles to be measured in radians  (SETUP) (Rad)

Set answers to be displayed to 3 decimal places (To use a different number of decimal places, replace with that number)  (SETUP) (Fix) Set answers to be displayed in scientific notation with 3 significant figures (To use a different number of significant figures, replace with that number)  (SETUP) (Sci) Cancel any display rounding settings  (SETUP) (Norm) The A, B, C, D, X, Y memories are used similarly to the M memory, except that these have no ‘add to’ and ‘subtract from’ functions.