# Examples Of Tagged Output - HP F2226A - 48GII Graphic Calculator User Manual

Graphing calculator.

Note: For mathematical operations with tagged quantities, the calculator will
"detag" the quantity automatically before the operation. For example, the left-
hand side figure below shows two tagged quantities before and after pressing
the * key in RPN mode:

## Examples of tagged output

Example 1 – tagging output from function FUNCa
Let's modify the function FUNCa, defined earlier, to produce a tagged output.
Use ‚ @FUNCa to recall the contents of FUNCa to the stack. The original
"Enter a: " {" :a: " {2 0} V } INPUT OBJ→ → a
«
"Enter a: " {" :a: " {2 0} V } INPUT OBJ→ → a
«
'2*a^2+3'
Store the program back into FUNCa by using „ @FUNCa.
program by pressing @FUNCa. Enter a value of 2 when prompted, and press
`. The result is now the tagged result F:11.
Example 2 – tagging input and output from function FUNCa
In this example we modify the program FUNCa so that the output includes
not only the evaluated function, but also a copy of the input with a tag.
Use ‚ @FUNCa to recall the contents of FUNCa to the stack:
"Enter a: " {" :a: " {2 0} V } INPUT OBJ→ → a
«
'2*a^2+3'
"Enter a: " {" :a: " {2 0} V } INPUT OBJ→ → a
«
'2*a^2+3' EVAL "F" →TAG a SWAP" "
'2*a^2+3'
NUM " "
NUM "F" →TAG " "
NUM "F" →TAG " "
«
«
Next, run the
«
«
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