The j d
(calc-show-selections) command controls how selected
sub-formulas are displayed. One of the alternatives is
illustrated in the above examples; if we press j d we
switch to the other style in which the selected portion itself is
obscured by ‘#’ signs:
3 ... # ___
(a + b) . . . ## # ## + V c
1* ............... 1* ---------------
. . . . 2 x + 1
If the customizable variable
calc-highlight-selections-with-faces is non-nil,
then the non-selected portion of the formula will be
de-emphasized by using a less noticeable face
(calc-nonselected-face) instead of dots and the
selected sub-formula will be highlighted by using a more
noticeable face (calc-selected-face) instead of
‘#’ signs.
(see Customizing
Calc.)