Best CalcMachine contains basic and scientific calculators, a unit converter with more than 1100 units and a currency converter with online updatable rates. An all-in-one, powerful but easy-to-use application. Basic Calculator • Large 12-digits display with very large and clear distinguishable numbers • Large buttons enough for your fingers • Arithmetic operations, square root, calculate using percentages, memory operations, 'call last result' button Scientific calculator • 24-digit display with lots of graphic indicators • Precedence mode - to reduce entering parenthesis (e.g. 2+2*2=6) • Operations and conversions can be performed in binary, octal, decimal, and hexadecimal form • Calculate basic arithmetic functions • Calculate using percentages • Calculate the root, square root or cube root of a number • Raise to power functions • Logarithmic and exponent functions • Calculate sine, cosine, tangent, arc sine, arc cosine or arc tangent • Calculate in degrees, radians or grads, mil, rev • Displays results in normal, scientific, or fix mode • Memory operations • 'Call last result' button • Operations with big and small numbers are supported (up to ten in 308th power or ten in minus 308th power) Unit converter • 1130 units in 67 categories • Great looking and eye appealing design • Built-in intuitive keyboard. No need to access to menus or pop-up keyboard • Results are calculated automatically when you type a number • Clear all and delete buttons • Ability to swap units • One click for Category and Unit From/To change • Ability to sort units and categories when selecting Currency converter • 1130 units in 67 categories • Currency converter with rates updated from European Cental Bank • Keypad pane • Results are calculated automatically when you type a number • Ability to swap units • Fast units selection