Features

Hidden features

Buttons

Almost each button on the keyboard has two features - main and additional. Note, the button labels of additional features on the main keyboard are hidden by default.
Main feature is activated by one simple click.
Additional feature is activated by click and hold a button (long press).
The most hard to understand marking on the buttons are described below.

Main keyboard

MC - clears the memory, it’s long press by C


(.. - inserts a left bracket before current subexpression (with + and - operators only)


..) - closes all opened brackets


LAST - inserts the last value (or expression) from the history


HIST - opens the history


(..)÷, (..)× - wrap expression and insert operator × or ÷


000 - inserts zeros


+/- - inverts sign of a number

Second keyboard

MS - saves current result to the memory


MR - reads a number from the memory


M+ - adds current result to the memory


hyp.. - defines hyperbolic trigonometric functions

Examplehyp.. sin gives sinh


→DEG →RAD - set units for trigonometric functions


⇄DMS - switches result box to DMS mode


xn - exponentiation operator ^

Operators

\ - integer division, just double press ÷

\\ - calculates remainder of division, just press ÷ three times or long press mod

Examples

5\2 = 2

5\\2 = 1


 - this is n-th root operator, n√x

Examples√9 = 3

2√9 = 3

3√8 = 2

4√256 = 4

Important!

2√9  is not 2×√9


% - defines percent calculation

Examples for the first method

200×5% = 10 (computes 5% of 200)

200-5% = 190 [10]

200-10%÷2 = 190 [10]
(both deduct 5% of 200, value in square brackets is 5% of 200)

10÷200% = 5
(10 is 5% of 200)

Functions

deg, rad - trigonometric units converters.

Examples

deg(π) = 180

rad(180) = 3.14159265


lb - binary logarithm


int - returns integer part of a number

Time calculation

time - defines expression for time calculations. It has two modes (Settings)

Examples for default mode

time:2.50+.30 = 3.20

time:1.20-2 = -0.40

time:1×1.5 = 1.30

time:1.30÷2 = 0.45

time:0.600 = 10.00

HEX/BIN/OCT mode

Use MENU to enter to this mode. The same ways return to the normal mode. BACK button also returns to the normal mode.
Number of digits (bits) is optional (Settings)

Buttons of the mode

- swaps main base and result base


BASE - selects main base


AUTO - binds result base to main base


DISP - selects result base


0⇄1 - replaces digit 0 at cursor with digit 1 and vice-versa


and, or, xor - logical operators &, |, #

Important!

Each logical operator has its priority:
and - high
xor - medium
or - low