Shortcuts
  

Main window of the program
Esc
minimize application
F1
open help window
F2
open "Functions" window
F3
open "Variables" window
F7
open "Currency converter" window
F8
open "Units converter" window
F9
quantity of fraction digits in result number
Ctrl+~
group digits of calculation result
Ctrl+0
write "000" to a math expression
Ctrl+1
keyboard no.1
Ctrl+2
keyboard no.2
Ctrl+3
keyboard no.3
Ctrl+4
keyboard no.4
Ctrl+5
keyboard no.5
Ctrl+Del
erase math expression
Ctrl+Enter
set result as math expression
Ctrl+H
open history window
Ctrl+I
revise math expression
Ctrl+Insert
insert math expression into history
Ctrl+T
window always on top
Ctrl+Tab
change calculator 1-3
Ctrl+Q
numeral system
Ctrl+W
measure of angle
Ctrl+Z
undo
Shift+Ctrl++
add result to the calculator memory
Shift+Ctrl+-
subtract result from the calculator memory
Shift+Ctrl+C
erase of the calculator memory
Shift+Ctrl+R
insert the calculator memory into math expression
Shift+Ctrl+Tab
change calculator 1-3
Shift+Ctrl+Z
redo
Space
open prompter window