Reusing numbers with last x – HP 33s User Manual
Page 49
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RPN: The Automatic Memory Stack
2–9
Example:
Suppose you made a mistake while calculating
16
× 19 = 304
There are three kinds of mistakes you could have made:
Wrong
Calculation:
Mistake:
Correction:
16
19
Wrong
function
{
{ z
15
19
z
Wrong
first
number 16
{ z
16
18
z
Wrong second number
{ q
19
z
Reusing Numbers with LAST X
You can use
{
to reuse a number (such as a constant) in a calculation.
Remember to enter the constant second, just before executing the arithmetic
operation, so that the constant is the last number in the X–register, and therefore
can be saved and retrieved with
{
.
Example:
Calculate
3947
.
52
3947
.
52
704
.
96
+
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