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Section 3: Automatic Memory Stack and ALPHA Register53
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287.0000
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22.2481
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12.9000
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287.0000
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20.6475
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Remember, if you key in the wrong digits and discover them prior to executing
a function, you can use to edit the
number.
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In the above axample, when first ÷ is pressed,
followed by g
LASTX, the contents of the stack and LAST X
registers are changed...
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...from this...
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...to this...
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...to this...
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0.0000
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0.0000
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0.0000
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0.0000
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0.0000
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0.0000
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287.0000
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0.0000
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22.2481
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12.9000
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÷
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22.2481
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g
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LASTX
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12.9000
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Recovering a Number for Calculation
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The LAST X register is useful in calculations where a number occurs more than
once. By recovering a number using LASTX , you do not
have to key that number into the calculator again.
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For example, calculate
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96.704 + 52.394706
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52.394706
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96.7040
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149.0987
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52.3947
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2.8457
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Constant Arithmetic
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You may have noticed that whenever the stack drops because of a two-number
operation (not a R ), the number in the T-register
is reproduced there. This stack operation can be used to insert a constant into
a problem.
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