This is a beautiful looking two-line expression calculator. You can switch from Standard to Sci Mode just like your regular Windows Calc, but this one will always keep your calculations. It also holds up to ten memories in Sci Mode. Some Math Functions supported: pi, e, cos, sin tan, arccos, arcsin, arctan,sqrt,log,log10,ln,round,abs,max,min, and a random function. It also has a digit grouping function that allows you display resulst in currency mode.