计算器

New: Use BigDecimal instead of Double Add an option to convert results to scientific notation (#263) Add an option to use modulo (#261) Add an option to select a value instead of copying it Add an option to split the parentheses button Add an option to disable history (#294) Add license to about section Improvements: Optimize the calculator Replace not essential EditText by TextView Enable symbol before decimal (#341) (@mwadle) Scale up the back button hitbox Update several translations Fixes: Cursor location (@mwadle) Theme apply issue with amoled mode Decimal factorial results (@muryno) Landscape mode hides some button icons (#402) Gray rectangle next to Settings (#420) Formating issues (@MahmoudRH) Many other fixes...