(calc.info)Truncating the Stack
8.7.8 Truncating the Stack
The `d t' (`calc-truncate-stack') command moves the `.' line that marks
the top-of-stack up or down in the Calculator buffer. The number right
above that line is considered to the be at the top of the stack. Any
numbers below that line are "hidden" from all stack operations. This
is similar to the Emacs "narrowing" feature, except that the values
below the `.' are _visible_, just temporarily frozen. This feature
allows you to keep several independent calculations running at once in
different parts of the stack, or to apply a certain command to an
element buried deep in the stack.
Pressing `d t' by itself moves the `.' to the line the cursor is on.
Thus, this line and all those below it become hidden. To un-hide
these lines, move down to the end of the buffer and press `d t'. With
a positive numeric prefix argument `n', `d t' hides the bottom `n'
values in the buffer. With a negative argument, it hides all but the
top `n' values. With an argument of zero, it hides zero values, i.e.,
moves the `.' all the way down to the bottom.
The `d [' (`calc-truncate-up') and `d ]' (`calc-truncate-down')
commands move the `.' up or down one line at a time (or several lines
with a prefix argument).
automatically generated by info2www version 22.214.171.124