iPhone Screenshots
Description
PlainCalc is a buttonless, algebraic-entry, mathematical calculator with variables and functions. To use PlainCalc, type an expression or assignment and press Return or Enter. Unlike most calculators I've seen, PlainCalc allows you to indicate multiplication by juxtaposition, e.g., you can write 2π instead of 2*π. Built-in functions include trigonometric functions, logarithms, square root, and standard deviation.