(2013-10-30) Basic keys and modifiers.
Shifted keys (no multi-taps ).
Most keys have more than one use.
The F-792SGA has three modifier keys in the upper-left corner of the keyboard,
labeled "Shift", "Alpha" and "Apps". Pressing on on these will change the behavior of the next
key pressed. The calculator
doesn't use the multi-tap concept
(whereby repeatedly pushing some keys accesses different functions, as in alphanumeric phone keybads
or the TI-TX36 Pro calculator).
The ON button is on the upper-right corner of the keypad.
To turn the calculator off before the standard 7-minute timeout, you push the aforementioned
"Shift" key followed by the "Cancel" key (the key labeled "CA" in orange, at the top-right
of the standard 20-key arithmetic keypad, formed by the bottom four row of white keys).
The (unshifted) CA key is normally used to cancel the entry of an entire line, as opposed to
the nearby DEL key which deletes just the last character entered.
The usual four directional buttons (used instead of a
D-pad on most scientific calculators)
are found prominently in the top-center of the keyboard, just under the screen.
The most elementary function of the up and down keys is to scroll through results previously obtained.
The left and right arrows are used to navigate through the various input boxes which appear on the
screen when the two-dimensional formula editor is used.
In that context, there may be nested expressions which can be entered with the down arrow or exited
with the up arrow (the process is standard nowadays, with all calculators that allow
two-dimensional interactive input).
The four directional keys are also used to navigate the menu structure of the F-792SGA.
(2013-11-03) Gripes & Kudos
Complaints and congrats about the F-792SGA calculator.
If you allow complex values by entering the complex "mode",
then some capabilities are blocked for no good reason
(e.g., you can't factorize integers into primes if you're in complex mode).
These lists may grow as this in-depth review of the calculator progresses...
Complex numbers only allowed in a secluded "mode" for experimentation, not use.