Mathematical Calculations
4.To recall a number, press L. With RCL displayed in the top line, key in the number of the memory you used.
You can also perform operations to stored numbers. For example, press 5:$2to store 5 in memory 2. To add 12 to the value of memory 2, press 12:$+2. Later on, during a calculation, you can press L2to recall memory 2. Note how the new current value is 17, (5 +12).
memories.
Recalling Stored Numbers
In RPN, typing 12L+2=adds the value of memory 2 to 12, but it will not modify the stored value of memory 2. You can also use
In Algebraic and Chain modes, press 12+L2=.
Rounding Numbers
The 20b performs all calculations internally with
When displayed, a number is rounded to the number of digits after the decimal point set by the FIX= item in the Mode menu. The default setting is two digits to the right of the decimal point. For more information, refer to the section titled, The Mode Menu: Setting Preferences.
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