stele Abacus Calculator

ScientificCalculator.
Features:
-Math(arithmetic,trigonometric)calculationsusingparentheses,variables,constants;
-Unitconversions
-Solveanequations;
-Calculationsincomputerlogicstyle(representationofnumberswithabase02-10-16,logicalandbitoperations;8-16-32-64-bitinteger);
-Savingvariable;
-Savethecalculationformulasinsets;
-Thehistoryofcalculations;
-Calculationguides;
-Exchangecalculationformulas(displaytextand/orcalculationformulas);
-Customkeyboardlayouts;
-Scrollthroughthekeyboardandthedisplayupanddown;
-Customizethelook(light,darktheme);
-RussianandEnglishlanguagesofinterface;
-Vibrofeedbackondisplaytaps.
Helpanddetailhttp://stele.su/abacus/help.htm