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C	Clears the expression and resets the result.
SHIFT	Enables or disables Shift mode for direct access to secondary buttons.
Ի	Turns the calculator off. Hold the button down until the action is completed.
ȡ	Deletes the character from the left of the cursor. Perform a long press for continuous deletion.
S⇌D	Switches the display format of the result between standard decimal, DMS for angles, and Polar form.
Ժ	Opens the calculator settings dialog box.
Ը	Opens the user manual dialog box.
ȝ	Moves the cursor one character to the left within the expression.
Ȝ	Moves the cursor one character to the right within the expression.
Ճ	Moves the cursor to the beginning of the expression.
Մ	Moves the cursor to the end of the expression.
Ȟ	Moves to the previous calculation entered by the user. Calculations are saved automatically when pressing the '=' key.
ȟ	Moves to the next calculation entered by the user. Calculations are saved automatically when pressing the '=' key.
³	ANS Parameter - Holds the last calculated result performed by the '=' button. This parameter can be used within the expression.
Յ	ANS Value - Enters the last calculated value directly into the expression.
Թ	Resizes the calculator buttons from small to big and vice versa.

The calculator's buttons have secondary functions, indicated by symbols displayed above each button. These functions can be accessed in two ways:

Long Press: Hold down the button until the action is completed. Vibration or sound feedback will be provided based on your settings.
Shift Mode: This mode provides direct access to secondary functions. When Shift mode is activated, the SHIFT indicator appears at the top of the display. With the SHIFT indicator on, a normal press on any key will activate its secondary function.

▸ Accessing sin^-1 using the SHIFT key:
SHIFT sin

The display indicator buttons are situated on the upper-right side of the display.

Ț	Clipboard Button: This button opens the Clipboard dialog box. The Clipboard dialog allows you to copy and paste values or expressions.
Ʌ	Information Button: This button provides additional information about the current result. The type of information varies depending on the value or calculation type. This button becomes visible when a result is displayed.

When the calculator switches to a non-decimal base or format, corresponding indicators will appear at the top of the display. Clicking these indicators will return the calculator to its default decimal state.

Navigate through previous calculations using the arrow keys Ȟ and ȟ. Only expressions executed with the = button are stored. Older expressions are automatically removed from memory.

Notes:

The history is managed separately for each numeric base (DEC, BIN, OCT, HEX).
The capacity for stored items is configurable in the calculator settings, it can be modified or disabled.